Tutor Marked Assignments

(1)

Tutor Marked Assignments Senior Secondary Course

2018–2019

NATIONAL INSTITUTE OF OPEN SCHOOLING

A-24-25, Institutional Area, Sector-62, Noida-201309 (U.P.) Website: www.nios.ac.in, www.nos.org

Toll free no. 18001809393

(2)



20 1, 2 3

2 + 2 + 2 = 6 1, 2

3 6

4 5 4

4 5 8 (4+ 4 = 8)

6 6

(i)

(3)

31 15

1

%

www.nios.ac.in



(ii)

(4)

1800 180 2543 0120-4626949

Audio on Demand

www.nios.iradio india.in

(iii)

(5)

Tutor Marked Assignments Important Instructions

Dear Learner,

By now you must have started studying your Senior Secondary Course of the National Institute of Open Schooling (NIOS). As you already know, planned and continuous study is necessary for successful completion of a course. We have developed several means and strategies to help you to learn and be a successful learner. Tutor Marked Assignments (TMA) is one such means.

TMAs will help you to:

 develop regular study habit which is necessary to become a self learner;

 know the subject matter better;

 get practice in writing responses to questions thereby having a kind of rehearsal in the preparation for the final examination;

 receive feedback and confirmation about the correctness of the response provided by you;

 check your progress in studying the subject you had opted for, so that you can find out subject areas where you have difficulties and need to put in more effort to learn well; and

 maintain contact with the subject teachers at your Accredited Institution (AI) and take appropriate guidance in your studies.

How to Prepare Answer Script for TMAs?

In this booklet you will find one assignment in each subject. You are required to complete the assignment in your own handwriting in the chosen subjects only. Use one sided lined paper to prepare answer script for TMAs and submit them to your teacher at your Study Centre (AI).

The Format of TMA

You will notice that TMA is for 20 marks. Questions 1, 2 and 3, comprise of short answer questions. Each question has two choices of which you have to attempt only one i.e. 2+2+2= 6 marks. Questions 1, 2 and 3 will thus cover 6 marks.

Question nunmber 4 and 5 are long answer questions of 4 marks each. You have to answer only one question out of the two given. Thus, questions 4 and 5 are for 8 marks (4+4=8).

Question no. 6 gives you two projects of which you have to attempt only one. This question will be for 6 marks. The guidelines for each project work are given along with the topic set.

The submission of TMAs

The schedule for submission of the Senior Secondary Course TMAs at AIs for both admission block are given below:

(iv)

(6)

Table No. 1:

Public Examination By Learners to Feedback by the Subject study centres Teacher to the Learner

April/May 31^st January 15^th February

October/November 31^st July 15^th August

If last date so specified happens to be a public holiday/Saturday/Sunday, the next working day will automatically be treated as last date for the purpose.

Please follow this submission schedule strictly to take benefit of TMAs. TMA is applicable for admission through stream–I of online. These should be submitted before appearing in the Public Examination of the particular subject. The Tutor Marked Assignment at Secondary will carry 20% weightage of theory part in the external examination. These marks will be shown separately in the marks sheet alongwith the external examination paper.

You have to submit TMA to the subject teacher at your Study Centre (AI) at given date. Do not forget to take a receipt of submission of your TMA from your teacher. A sample of the assignment submission receipt is given at the end of this booklet.

In case, the Study Centre is not functioning or closed due to administrative reasons, you may submit the TMA as per the schedule given above, at the Regional Centre of your area which will take necessary action for evaluation and sending awards to the NIOS Head Quarters for inclusion in the final result.

For every academic year a new set of TMA booklets will be available at the Study Centres/concerned Regional Centres. In case you are not able to get the TMA booklet, you may download the same from the official website of NIOS i.e. www.nios.ac.in.

Go through the corrected assignments carefully and use them to improve your performance by:

• re-reading the lessons in the study materials provided to you in each subject.

• attending PCP classes to clarify doubts from the teacher or solve problems that you face during studies;

and

• devoting more time for studies.

Looking into the benefits of TMA, it will be possible for you to make best use of it in order to become a successful learner.

If you have any doubt or suggestions, please do not hesitate to write to us.

The Audio-Visual Programme of NIOS

Appreciating your need for more support NIOS also brings the magic of technology to your door step!!

"Mukta Vidya Vani" our web based live PCPs supplement and complement the Self Learning Materials.

It gives you an opportunity to interact with the experts of your subjects. You can clear your queries and doubts by calling on our TOLL Free Number 1800 180 2543. You can also call on 0120- 4626949. The

(v)

(7)

(vi)

time schedule of the live programmes is given below for reference. If due to any reason you miss the live PCPs you can hear the recorded versions in repeat cycle or at Audio on Demand. The video programmes of NIOS are also available at You tube.

Broadcasting Broadcasting Time

Medium

Mukta Vidya Vani Saturday and Sunday Recorded and Repeat PCP www.nios.iradio 2.00 PM – 5.00 PM 8.00 A.M. to 1.00 P.M.

india.in Monday to Friday and 5 P.M. to 8.00 P.M.

10.30AM – 12.30AM

For Gazetted holiday between Monday to Friday 10.30 a.m. to 01.30 p.m.

We wish you all the best.

Academic Officers

National Institute of Open Schooling

(8)

(Contents)

Sl. No. Subject Page No.

1. /Hindi (301) 1

2. /English (302) 3

3. /Urdu (306) 5

4. Sanskrit (309) 8

5. Mathematics (311) 10

6. Physics (312) 13

7. Chemistry (313) 17

8. Biology (314) 21

9. History (315) 24

10. Geography (316) 27

11. Political Science (317) 31

12. Economics (318) 35

13. Business Studies (319) 38

14. Accountancy (320) 40

15. Home Science (321) 44

16. Psychology (328) 49

17. Computer Science (330) 52

18. Sociology (331) 55

19. Painting (332) 58

20. Environmental Science (333) 61

21. Mass Communication (335) 65

22. Data Entry Operations (336) 67

23. Tourism (337) 73

24. Introduction to Law (338) 75

25. Information and Library Science (339) 78

26. Arabic (341) 81

27. Parsian (342) 84

28. (345) 87

29. (346) 88

30. (347) 89

31. (348) 90

Assignment Submission Receipt

(9)

1

-

(i) (ii) -

Session 2018-19

(10)

2 Session 2018-19

(11)

3

ENGLISH (302)

TUTOR MARKED ASSIGNMENT (2018-19)

Max. Marks : 20 Note: (i) All questions are compulsory. The marks alloted for each question are given at

same place.

(ii) Write your name, enrollment number, AI name and subject on the top of the first page of the answer sheet.

1. Answer any one out of the following questions in about 40 to 60 words. 2 (a) Why did Bholi talk very litte? Give two reasons. (See Lesson-25)

(b) Why did the father call the holyman to treat the mother when he was a rationalist?

(See Lesson-18) 2. Answer any one out of the following questions in about 40 to 60 words. 2

(a) I shall be telling this with a sigh Somewhere ages and ages hence:

Two roads diverged in a wood, and I – I took the one less travelled by,

And that has made all the difference.

(i) In the first stanza, the poet is talking of the present time when he has to choose one of the two roads. What time is he thinking of in the last stanza? Pick out the words in support of your answer.

(ii) What has made all the difference? (See Lesson 14)

(b) Bholi felt as if suddenly all the bells in the village temple were singing and the trees in front of the school had blossomed into big red flowers. Her heart was throbbing with a new hope and a new life.

(i) What is the mood of Bholi in the above extract?

(ii) What does the expression ‘her heart was throbbing’ imply? (See Lesson 25) 3. Answer any one out of the following questions in about 40 to 60 words. 2

(a) Why does the poet look down the road as far as he can see? (See Lesson 14) (b) What does the poem Night of the Scorpion say about a mother? (See Lesson 18)

4. Answer any one out of the following questions in about 100 to 150 words. 4 (a) In his childhood days Gavaskar was not a sporting player. He would walk away with the bat and ball whenever he was declared ‘out’ which brought the game to an abrupt end.

How would you convince a friend of yours who behaves in a similar fashion?

(See Lesson 1) (b) How did the intruder prepare himself to take up the identity of Gerrard? (See Lesson 12) Session 2018-19 (English - 302)

(12)

4

5. Answer any one out of the following questions in about 100 to 150 words. 4 (a) If Nankaka had not noticed the hole on his ear where would he be living? (See Lesson 1) (b) Bholi’s meeting with her teacher was a turning point in her life. What kind of changes come upon her thinking, personality and self awareness? (See Lesson-25) 6. Prepare any one project out of the following in about 500 words. 6 (a) In India, medicines have traditionally been prepared from plants, spices and everyday kitchen ingredients. Our mothers and grandmothers know how to prepare these medicines at home. They often use such home remedies to cure small health problems and ailments.

Title : Medicinal plants and kitchen ingredients used for home remedies.

Objective : To make people aware of the various common medicinal plants or kitchen ingredients used for home remedies.

Step-I : Collect information from your grandmother and elderly ladies in the neighbourhood about home remedies.

Step-II : Under each medicinal plant or ingredient, write the ailment / ailments for which it is used.

Step-III : Tabulate the whole information under the main head - ‘Home Remedies’ with the following sub-heads:

(i) Name of ingredients / plants (ii) Ailment / Ailments

(iii) Availability (iv) Usage

(b) Title: Virat Kohli - a Bio-Sketch.

Objective: To be able to collect information about Kohli and write his bio-sketch.

Step-I Collect information about Virat Kohli You may include:

(i) his birth, birth place year etc.

(ii) his family background, education

(iii) his education, interests and inspiring personality (iv) his entry into the field of cricket

(v) his career as a cricketer

(vi) his achievements, awards, honours (vii) his personal life

Step-II : Select the important information to be included in the sketch. Select important points which will motivate and inspire sports persons to take up the game.

Step-III : Imagine that you are Kohli. A journalist wants to write your biography. What important things would you like to be included in the biography?

Step-IV : Write a bio-sketch based on your information.

Session 2018-19 (English - 302)

(13)

5

(2018-19)

Session 2018-19 (Urdu- 306)

(14)

6 Session 2018-19 (Urdu- 306)

(15)

Session 2018-19 (Urdu- 306) 7

(16)

8

(i) (ii)

Session 2018-19

(17)

Session 2018-19 9

(18)

10

MATHEMATICS (311)

Max. Marks : 20 (i)

Note: All questions are compulsory. The marks alloted for each question are given at same place.

(ii)

Write your name, enrollment number, AI name and subject on the top of the first page of the answer sheet.

Answer any one out of the following questions.

(a) 100 O;fDr;ksa ds lewg esa 60 O;fDr fØdsV [ksyuk ilUn djrs gSa] 20 O;fDr fØdsV rFkk Vsful nksuksa [ksyuk ilUn djrs gSaA fdrus O;fDr Vsful [ksyuk ilUn djrs gSa ijUrq fØdsV ugha\

¼ikB&1 ns[ksa½

In a group of 100 people, 60 people like to play cricket, 20 people like to play both cricket and Tennis. How many people like to play Tennis but not cricket?

(See Lesson - 1) (b) 15 lseh f=T;k okys ,d o`Ùk ds dsUnz ij 2-5 lseh yEckbZ dh pki }kjk cuk;s x, dks.k dh eki

fMxzh ,oa jsfM;l esa Kkr dhft,A ¼ikB&3 ns[ksa½

Find the measure of an angle in degrees and radians formed by an arc of 2.5 cm length at the centre of a circle with 15 cm radius (See Lesson - 3)

2- fuEufyf[kr Á'uksa esa ls fdlh ,d Á'u dk mŸkj nhft,A 2

Answer any one out of the following questions.

(a) 4 yM+fd;ksa rFkk 6 yM+dksa esa ls 5 lnL;ksa dh lfefr fdrus rjhds ls cukbZ tk ldrh gS\ ;fn lfefr esa& ¼v½ 2 yM+fd;k¡ lfEefyr dh tk,¡ ¼c½ de ls de 2 yM+fd;k¡ lfEefyr dh tk,¡A

¼ikB&11 ns[ksa½

In how many ways a committee of 5 members to be formed out of 6 boys and 4 girls, if:

(i) two girls are included in the committee

(ii) at least 2 girls in the committee (See Lesson 11)

Session 2018-19 (Mathematics - 311)

(19)

11 (b) ,d nh xbZ la[;k 593] lekarj Js.kh 5] 9] 13] - - - dk ,d in gSA D;k ;g lgh gS\ tk¡p

dhft, rFkk fyf[k, ;g dkSu lk in gS\ ¼ikB&6 ns[ksa½

The number 593 is a term of the AP formed by the terms 5, 9, 13, . . . , is it true? Check it

and find the number of this term. (See Lesson - 6)

Answer any one of the following questions.

(a) ,d ijoy; dk lehdj.k Kkr dhft, ftldk ukfHk ¼&8] &2½ gS rFkk fu;rk

y - 2x+ 9 = 0 gSA ¼ikB&16 ns[ksa½

Find the equation of a parabola with focal points (-8, -2) and directrix y -2x + 9 = 0 (See Lesson - 16) (b) ,d ckWDl esa 9 dkys jax dh rFkk 7 lQsn jax dh xsansa gSaA nks xsansa ;kn`fPNd :i ls fudkyh tkuh gSaA ,d xsan dks fudkyus ds ckn nksckjk j[kk tkuk gSA nksuksa xsanksa ds dkyh gksus dh

Ákf;drk Kkr dhft,A ¼ikB&19 ns[ksa½

Two balls are drawn at random, with replacement from a box containing 9 black and 7 white balls. Calculate the probability of both balls are black. (See Lesson - 19)

(a) xf.krh; vxeu ds fl)kar dk Á;ksx djrs gq, ;g fl) dhft, fd fdlh Ákd`r la[;k ^n^ ds fy, 4²ⁿ > 15n ;g dFku lnSo lR; gSA ¼ikB&10 ns[ksa½

Using Mathematical induction, prove that for any natural number 'n' the statement 4²ⁿ >

15n is always true. (See Lesson - 10)

(b) rk'k ds 52 iÙkksa esa] tgk¡ ÁR;sd iÙks dh fudkyus dh lEHkkouk leku gS] A ,d Á;ksx gS ftlesa fudkyk x;k iÙkk ^gqde^ dk gSA rFkk B nwljk Á;ksx gSs ftlesa fudkyk x;k iÙkk ,d ^bDdk^

gSA Li"V dhft, fd nksuksa Á;ksx ,d nwljs ij fuHkZj ugha gSaA ¼ikB&18 ns[ksa½

A Card is drawn from a pack of 52 cards, so that each card is equally likely to be drawn from the pack. 'A' is the event that the card drawn is of 'Spade' and 'B' is the event, where the card drawn is an 'ace'. Explain whether the two events are independent.

(See Lesson - 18)

(a) ,d xq.kksÙkj Js.kh ds rhu inksa dk xq.ku Qy 512 gSA ;fn ÁFke in esa 8 rFkk f}rh; in esa 6 tksM+ nsa rks u;s inksa ls ,d lekarj Js.kh curh gSaA rhuksa inksa dks Kkr dhft,A ¼ikB&6 ns[ksa½

The product of three terms of a GP is 512. If 8 is added to the first term and 6 to the second term, find the new terms form an AP. (See Lesson - 6)

(20)

12

(b) (i) Qyu dk ,d mnkgj.k nhft, ftldk vkys[k ewy fcUnq ds lefer gksA bldk vkys[k Hkh

[khafp,A ¼ikB&2 vkSj 8 ns[ksa½

(i) Give an example of a function whose graph is symmetrical about origin and draw the graph.

(ii) fuEu dks a +bi ds :i esa O;Dr dhft,A 7i⁷ + 6i⁶ +3i³ - 2i² + 1

Express 7i⁷ + 6i⁶ +3i³ - 2i² + 1 in the form of a + bi (See Lesson - 2 and 8)

6- uhps nh xbZ ifj;kstukvksa dh lwph esa ls dksbZ ,d ifj;kstuk rS;kj dhft,A 6

Prepare any one project out of the given below:

(a) pkyw ekl ds 20 fnuksa dk vf/kdre@U;wure rkieku vius Vh- oh- ;k lekpkj i= ls ns[ksa vkSj fuEu Á'uksa ds mÙkj fy[ksaA

(i) vkadM+ksa dk Álkj Kkr dhft,A

(ii) ekiu fopyu Kkr dhft,A

(iii) bu vkadM+ksa dks vkjs[k }kjk ckjackjrk cgqHkqt ds :i esa n'kkZb,A

(iv) ckjackjrk cgqHkqt ij ml fnu dks n'kkZb, tc vf/kdre ,oa U;wure rkieku gSA

¼ikB&24 vkSj 25 ns[ksa½

Collect the data for maximum and minimum temperature for last 20 days in the current month.

(i) Find the range of the data

(ii) Find the mean deviation of the data

(iii) Draw the frequency polygon based on this data

(iv) On this frequency polygon, mark the day having maximum and minimum temperature.

(b) vius vklikl 50 ifjokjksa dk ,d losZ dhft, ftlesa lnL;ksa dh la[;k] vk;q ,oa ftudk vk/kkjdkMZ cu x;k gS] mudk vkadM+k ,df=r djsa rFkk fuEu dk mÙkj fy[ksaA

(i) ifjokj dh vkSlr lnL; la[;k Kkr djsa

(ii) ,d mi;qDr oxZ varjky ysdj] vk/kkjdkMZ cu x;s lEcfU/k vkadM+k ds fy, lkfj.kh cukb,

(iii) mijksDr lkfj.kh ls vkadM+k dk ekud fopyu Kkr dhft,A

(iv) vkadM+k dk Álj.k Kkr dhft,A ¼ikB&24 vkSj 25 ns[ksa½

Conduct a survey of 50 house holds of your locality in which number of family members, age and whether Aadhar Card issued or not is to be included.

(i) Find the average family size

(ii) By taking appropriate class interval prepared the frequency table for the data related to issuing Aadhar Card.

(iii) Find the Standard Deviation (SD) on the above data (ii) (iv) Find the variance.

(21)

13

PHYSICS (312)

(ii)

Answer any one out of the following questions in about 40-60 words.

(a) F^→= 3i +4j U;wVu dk ,d cy 2 fdyks nzO;eku ds ,d fiaM ij vkjksfir fd;k tkrk gSA fiaM ds Roj.k ds ifjek.k vkSj fn'kk dk ifjdyu dhft,A ¼ikB&1 ¼1$1½

A force F^→= 3i + 4j newton is applied on a body of mass 2 kg. Calculate the magnitude and direction of the acceleration in the body. (Lesson - 1) (1+1) (b) ljy js[kk esa xfreku fdlh d.k dh xfr dk osx≤ xzkQ lkFk ds fp= esa n'kkZ;k x;k gSA xzkQ ds vk/kkj ij fuEufyf[kr Á'uksa ds mÙkj nhft,A ¼ikB&2½

(i) d.k }kjk 4s esa pfyr nwjh dk ifjdyu dhft,A ¼1½

(ii) t = 5s ij d.k dk osx crkb,A (½)

0,0 5 10 15 20

1 2 3 4 5 >

^

t (s) → (msv^–1)

↑

Session 2018-19 (Physics - 312)

(22)

14

(iii) le; ds fdl eku ds fy, d.k dk osx 15m s^–1gksxkA (½) The velocity time graph of the motion of a particle moving in a straight line is given in the adjoining diagram. Draw the below diagram shown, read the graph to answer the following

questions: (Lesson -2)

(i) Calculate the distance travelled by the particle in 4s. (1)

(ii) Find the velocity of motion at instant t = 5s. (½)

(iii) At what instant the velocity of the particle is 15m s^–1. (½) 2. fuEufyf[kr esa ls fdlh ,d dk mŸkj yxHkx 40&60 'kCnksa esa nhft,A

Answer any one of the following questions in about 40 to 60 words. 2 (a) lapkj Á.kkfy;ksa }kjk lEÁsf"kr fd, tkus okys JO; flXuyksa dk vf/kdre rjaxnS/;Z fdruk gksrk gS\ bu flXuyksa dks lqnwj LFkkuksa rd lh/ks Ásf"kr D;ksa ugha fd;k tk ldrk\ dksbZ nks dkj.k crkb,A bUgsa yEch nwjh rd Ásf"kr djus ds fy, D;k O;oLFkk dh tkrh gS\ ¼ikB&30½

What is the longest wavelength of audio signals to be transmitted in communication system? Why can't we transmit these signals directly at long distances? Give any two reasons. What is done to transmit them to long distances. (Lesson-30) (b) lw;Z ls ;wjsul dh ek/; nwjh yxHkx 20 AU rFkk IywVks dh yxHkx 40 AU gSA bu xzgksa ds lw;Z ds ifjr% ifjØe.k&dkyksa ds vuqikr dk ifjdyu dhft,A ¼ikB&5½

The average distance of Uranus from the sun is about 20 AU and that of Pluto is about 40 AU. Find the ratio of the time periods of reveolution of these planets around the sun.

(Lesson -5) 3. fuEufyf[kr esa ls fdlh ,d dk mŸkj yxHkx 40&60 'kCnksa esa nhft,A

Answer any one of the following questions in about 40 to 60 words. 2 (a) pDdh ds ,d ikV dk nzO;eku 5.0 kg vkSj O;kl 0.4 m gSA ;g 2 pDdj Áfr lsdaM ds osx ls

?kwe jgk gSA ml cy&vk/kw.kZ dk ifjdyu dhft, tks bl ikV ij yxk;k tk, rks bldk dks.kh; osx 2s esa c<+ dj 8 pDdj ÁfrlsdaM gks tk,A ¼ikB&7½

0,0 5 10 15 20

1 2 3 4 5 >

^

t (s) → (msv^–1)

↑

(23)

15 A grinding wheel of mass 5.0 kg and diameter 0.4m is rotating with an angular speed of 2 rev s^-1. Calculate the torque which will increase its angular speed to 8 revolution per

second in 2s. (Lesson-7)

(b) L yEckbZ vkSj A vuqÁLFk dkV {ks=Qy dk ,d rkj nks n`<+ vk/kkjksa ds chp lh/kk j[kk x;k gSA

0^oC ij mlesa Áfrcy 'kwU; gSA n'kkb, fd 100^oC ij blesa Áfrcy 100 α_Ygksxk] tgk¡ αrkj ds inkFkZ dk js[kh; Álkj xq.kakd vkSj Y bldk ;ax ÁR;kLFkrk xq.kakd gSA ¼ikB&8½

A wire of length L and area of cross-section A is held straight between two rigid supports.

It has zero stress at 0^oC. Show that the stress in the wire at 100^oC is 100 α_{Y, where}α_is coefficient of linear expansion and Y is young's modulus of elasticity of the wire.

(Lesson -8) 4. fuEufyf[kr esa ls fdlh ,d dk mŸkj yxHkx 100&150 'kCnksa esa nhft,A

Answer any one of the following questions in about 100 to 150 words. 4 (a) CpvkSj Cvdh ifjHkk"kk fyf[k,A f}&ijek.kqd xSl ds fy, vuqikr Cp / Cvds fy, O;atd

O;qRiUu dhft,A ¼ikB&10½

Define Cp and Cv. Derive an expression for the ratio of Cp / Cv for a diatomic gas.

(Lesson - 10 (b) Solar constant on earth is 1.36 × 10³ W m^–2, If Mars is at a distance of 1.52 AU from the sun, calculate the solar constant on Mars applying Stefans Law. (Lesson - 12)

i`Foh ij lkSj fu;arkd dk eku 1.36 × 10³ W m^–2 gSaA ;fn eaxy xzg dh lw;Z ls nwjh 1.52 AU

gks rks LVhQu fu;e dk mi;ksx djds eaxy ij lkSj fu;arkd dk eku ifjdfyr dhft,A

¼ikB&12½

5. fuEufyf[kr esa ls fdlh ,d dk mŸkj yxHkx 100&150 'kCnksa esa nhft,A

Answer any one of the following questions in about 100 to 150 words. 4 (a) O;k[;k dhft, fd fdlh ysUl dk ifjos'kh ek/;e ok;q ls ty cnyus ij mldh {kerk esa fdl Ádkj ifjorZu vkrk gSA og 'krZ crkb, ftlds varxZr ek/;e cnyus ls dksbZ mÙky ysUl vfHklkjh ysUl dh Hkkafr O;ogkj djus yxsxkA bl ifj?kVuk dks fp= cukdj le>kb,A

¼ikB&20½

Explain how will the power of a lens change when its surrounding medium is changed from air to water. Give the condition under which a convex lens will start working as a diverging lens by changing its surrounding medium. Show this phenomenon by drawing a

ray diagram. (Lesson-20)

(b) fdlh [kxksyh; VsfyLdksi dk n`";d ysUl nh/kZ Qksdl nwjh vkSj fo'kky }kjd dk D;ksa gksrk gS\

;g Hkh le>kb, fd ijkorZd VsfyLdksi [kxksyh; fiaM ds NksVs Hkkx dk vf/kd vPNk ÁfrfcEc

D;ksa fufeZr djrk gS\ ¼ikB&23½

Why does the objective of an optical telescope have large focal length and large aperture? Also explain why does a reflector give better image of a small portion of the

celestial body? (Lesson - 23)

(24)

16

6. uhps nh xbZ ifj;kstukvksa esa ls fdlh ,d ifj;kstuk ij dk;Z dhft,A 6

Perform any one of the two projects given below.

(a) ckWy iksbaV isu ls fjfQy fudky nhft,A yxHkx 1 ehVj yEcs] irys] etcwr lwrh /kkxs dks isu ds [kksy ls gksdj xqtkfj,A /kkxs ds fupys fljs ij ,d Hkkjh ok'kj A vkSj Åijh fljs ij ,d vis{kkÑr gYdk ok'kj B ckaf/k,A ok'kjksa dks ck¡/kus ls igys buds nzO;eku HkkSfrd rqyk dh lgk;rk ls Bhd&Bhd eki yhft,A isu ds [kksy ds fupys fljs ls 20 cm

uhps /kkxs ij isu ls fu'kku yxkb,A vius nkfgus gkFk esa isu ds [kksy dks Å/okZ/kjr% idfM+, vkSj ok'kj B dks /kqekb, rkfd ;g ,d {kSfrt ry esa o`Ùkkdkj iFk ij vpj osx ls xfr djsA vki ns[ksaxs fd ok'kj A Åij mB tkrk gSA ok'kj B dh /kw.kZu pky bruh c<+kb, fd /kkxs ij yxk fu'kku isu ds fupys fljs rd Åij mB tk,A ml pky dh x.kuk dhft, ftlls ok'kj B vius o`Ùkkdkj iFk ij xfr dj jgk gSA ikbi ds fupys fljs ls /kkxs dh yEckbZ 30 cm, 40 cm vkSj 50 cm ysdj Á;ksx dks nksgjkb,A v²dks y- v{k rFkk r dks x- v{k ij ysdj

v²,oa r ds chp xzkQ cukb,A ¼ikB&4½

Remove th refill from a ball point pen. Pass an about 1m long thin, strong cotton thread through the body of the pen. Tie a heavy washer A at the lower end and a comparatively lighter washer B at the upper end as shown in fig. The masses of washers must be precisely measured with the help of a physical balance. Mark a point on the thread at a distance of 20 cm below the lower edge of the body of the pen. Hold the pen vertically in your right hand and rotate the washer B till it moves on a circular path in horizontal plane with constant speed. You will find that the washer A moves up. Increase the speed of rotation till the mark on the thread rises to the lower edge of the body of the pen. Calculate the speed with which washer B is moving on its circular path. Repeat the experiment for thread lengths 30 cm, 40 cm and 50 cm below the lower edge of the pipe. Plot a graph between v² and r taking v² on y - axis and r on x-

axis. (Lesson - 4)

(b) ek/; n`<+rk dk] yxHkx 20 cm yEckbZ dk ,d fLÁax yhft,A blds Åijh fljs dks fdlh n`<+

vk/kkj ls tksM+ nhft,A fLÁax ds fupys fljs ij Kkr nzO;eku dk ,d iyM+k tksM+ dj bl O;oLFkk dks Å/okZ/kj yVdus nhft,A iyM+s dks 1-2 cm uhps dh vksj [khap dj NksM+ nhft,A iyM+k Å/oZ/kj ry esa Åij&uhps nksyu djsxkA fojke ?kM+h dh lgk;rk ls blds 20 nksyuksa dk le;&dky Kkr dhft, vkSj iyMs+ ds nksyu&dky dk ifjdyu dhft,A vc iyM+s ij ,d vkSlr eki dk iRFkj dk VqdM+k jf[k,] bls fQj ls nksfyr dhft, vkSj nksyu&dky dk ifjdyu dhft,A vius Ás{k.kksa ls ÁkIr vkadM+ksa dk mi;ksx djds iRFkj ds VqdM+s ds nzO;eku dk

ifjdyu dhft,A ¼ikB&13½

Take a spring of medium stiffness, about 20 cm in length. Fix the upper end of the spring to a rigid support. On the lower end attach a scale pan of known mass so that the system hangs vertically. Pull the pan 1-2 cm downwards and release. The pan will oscillate up and down. Measure the time of 20 oscillations with the help of a stop watch and calculate the time period of oscillation of pan. Now place a middle size pebble on the pan, set it in oscillations and determine the time period of oscillation again. Calculate the mass of the pebble using the data obtained from your observations. (Lesson-13) A

B

(25)

17

CHEMISTRY (313)

(ii)

Answer any one out of the following questions in about 40 to 60 words.

(a) Mg dh ÁFke vk;uu ,aFkSYih Al dh vis{kk vf/kd gksrh gSA D;ksa\ ¼ikB&3 ns[ksa½

The first ionisation enthalpy of Mg is higher than AI. Why? (See lesson- 3) (b) Dyksjhu dh bySDVªkWu xzg.k ,aFkSYih F ls vf/kd gksrh gS\ D;ksa\ ¼ikB&3 ns[ksa½

Electron gain enthalpy of Cl is higher than F. Why? (See lesson - 3)

(a) lkekU; ?kuh; tkyd ds fy, /kkrq fØLVy dh ladqyu {kerk dks ifjdfyr dhft;sA

¼ikB&6 ns[ksa½

Calculate the packing efficiency of a metal crystal for simple lattice. (See lesson - 6) (b) fuEufyf[kr ra= esa ,aVªkih esa o`f) ;k deh dk vuqeku yxkb;s& ¼ikB&10 ns[ksa½

(i) N₂(g) + 3H₂(g) → 2NH₃(g) (ii) O₂(g) → 2O(g)

Indicate whether you would expect the entropy of a system to increase or decrease of the

following: (See lesson - 10)

(i) N₂(g) + 3H₂(g) → _2NH₃

(ii) O₂(g) → 2O(g) Session 2018-19 (Chemistry - 313)

(26)

18

(a) fuEufyf[kr vfHkfØ;kvksa ds fy, lkE;oLFkk fLFkjkad O;qRiUu fyf[k,&

(i) 2SO₂(g) +O₂(g) ^2SO3(g) ¼ikB&11 ns[ksa½

(ii) N₂O₄(g)  ^2NO²^(g)

Write down the expressions of equilibrium constant for the following reactions:

(i) 2SO₂(g) +O₂(g)  ^2SO³^(g)

(ii) N₂O₄(g)  ^2NO2(g) (See lesson - 11)

(a) vklkuh ls nzohd`r xSlsa vfr'kh?kzrk ls vf/k'kksf"kr gks tkrh gSaA D;ksa\ ¼ikB&15 ns[ksa½

Easily liquefiable gases are adsorbed more readily. Why? (See lesson - 15)

(a) fuEufyf[kr ÁØeksa ds ÁR;sd ds fl)kUrksa dk o.kZu dhft,A ¼ikB&16 ns[ksa½

(i) NaCN ds foy;u ds lkFk dk Ag fu"d"kZ.kA

(ii) vifj"Ñr /kkrq dk ty vi?kVu ifj"dj.kA

Describe the underlying principle of each of the following processes:

(i) Extraction of Ag from silver ore with a solution of NaCN.

(ii) Electrolytic refining of crude metal. (See lesson - 16) (b) (i) gsfeVkbV ls fix vk;ju ds fuekZ.k essa pwus ds iRFkj dk D;k mi;ksx gksrk gS\

(ii) >kx Iyou fof/k esa ikbu ds rsy dk D;k mi;ksx gksrk gSaA

(i) Role of limestone in the manufacture of pig iron from haematite.

(ii) Role of Pine oil in the froth floatation process.

(a) fuEufyf[kr dk o.kZu dhft;s&

(i) PbO2vkDlhdkjd dh Hkkafr dk;Z djrk gSaA D;ksa\

(ii) dkcZu dh Áo`fŸk yEch Ük`a[kyk cukus dh gksrh gS tcfd flfydku dh ughaA D;ksa\

¼ikB&19 ns[ksa½

Session 2018-19 (Chemistry - 313)

(27)

19 Explain the following:

(i) PbO2 acts as oxidising agent. Why?

(ii) Carbon has a tendency to form long chain compounds but silicon does not. Why?

(See lesson - 19) (b) nks ty esa foys; foVkfeUl] muds lzksr vkSj vkgkj esa mudh deh ds dkj.k gksus okyh chekfj;ksa

ds uke fyf[k,A ¼ikB&29 ns[ksa½

Name the two water soluble vitamins, their sources and diseases caused by their deficiency

in diet. (See Lesson - 29)

6. uhps nh xbZ ifj;kstukvksa esa ls dksbZ ,d ifj;kstuk rS;kj dhft,A 6

Prepare any one project out of the given below:

(a) d{kk 12 ds 20 Nk=ksa dk lewg fudV ds xkao x;kA mUgksus ogka ij xzkeh.k vkSj 'kgj ds okrkoj.k esa varj ns[kkA 'kgjh {ks= esa vR;f/kd Ánw"k.k gksrk gSA ogka ds yksx [kaklh] Vk;QkbM vkSj Ropk ds jksxksa ls ijs'kku gSa tcfd xzkeh.k {ks= ds yksx LoLFk gksrs gSaA 'kgj esa n`';rk dh Hkh deh gksrh gSA xzkeh.k {ks= esa vf/kd o`{k gksrs gSa ftuds dkj.k okrkoj.k 'kq) gksrk gSA

(i) Ánw"k.k ds eq[; dkSu&dkSu ls dkj.k gS\

(ii) ÁkFkfed vkSj f}rh;d Ánw"kd D;k gksrs gSa\

(iii) ty ls mRiUu gksus okyh chekjh dk uke crkb,A

(iv) Xykscy okfe±x D;k gksrk gS\

(v) vius okgu dks yky cRrh ij can djuk mfpr D;ksa gksrk gS\

(vi) Ádk'k jlk;fud /kqa/k D;k gksrh gS\

A group of 20 students of Class XII went to a nearby village. They observed that there is a lot of difference in the environment of rural and urban area. In urban area, there is a lot of pollution. Peoples are suffering from cough, typhoid, and skin diseases but in rural area people are healthy. There are a large number of trees in rural area therefore, environment is clean.

(i) What are the main reasons of air pollution?

(ii) What are primary and secondary pollutants?

(iii) Name two water borne diseases.

(iv) What is global warming?

(v) Why is it advisable to switch off engine of vehicle at red light?

(vi) What is photochemical smog?

(b) d{kk 12 ds 20 Nk= ,d vkS"kf/k dh nqdku ij x;sA mUgsa fofHkUu chekfj;ksa dks Bhd djus ds fy, vkS"kf/k;ksa dh tkudkjh ikus dh #fp FkhA mUgksaus fuEufyf[kr vkS"kf/k;ka ,d= dha&

lsYMksu] 0-2% Qhuky] isuhflyhu G] dwuhu] fQusflfVu] ekjQhu

(28)

20

(i) buesa ls fdldk mi;ksx ,aVhlsfIVd esa gksrk gS\

(ii) buesa ls fdldk mi;ksx ,aVhfgLVsekabl ds :i esa gksrk gS\

(iii) buesa ls fdldk mi;ksx eysfj;k jks/kh ds :i esa gksrk gS\

(iv) buesa ls fdldk mi;ksx ,aVhck;ksfVd ds :i esa gksrk gS\

(v) buesa ls fdldk mi;ksx nnZuk'kd ds :i esa gksrk gS\

(vi) buesa ls fdldk mi;ksx Toj jks/kh ds :i esa gksrk gS\

The students of Class XII went to a nearby medical shop. They were interested to know the name of medicines used to cure the different diseases. They have collected the following medicines:

Seldane, 0.2% Phenol, Penicillin G, Quinine, Phenacetin, Morphine Answer the following questions:

(i) Which one is used as antiseptic?

(ii) Which one is used as antihistamines?

(iii) Which one is used as antimalarials?

(iv) Which one is used as antibiotic?

(v) Which one is used as analgesic?

(vi) Which one is used as antipyretic?

(29)

21

BIOLOGY (314)

Max. Marks : 20 Note: (i) All questions are compulsory. The marks alloted for each question are given at

same place.

(ii)

1- fuEufyf[kr esa ls fdlh ,d Á'u dk mŸkj yxHkx 40&60 'kCnksa esa nhft,A 2

Answer any one of the following questions in about 40 to 60 words.

(a) pkj ,slh xSlksa dk uke fyf[k, tks i`Foh ds vkjfEHkd okrkoj.k esa fo|eku FkhaA tSo fodkl ds nkSjku i`Foh ij loZÁFke fdl txr ds thoksa dk mn~Hko gqvk\ ¼ikB&1 ns[ksa½

Name the four gases which were present in the primitive atmosphere. Which kingdom

was the first to evolve on earth? (See lesson-01)

(b) dksf'kdk vaxd fdUgsa dgrs gSa\ fuEufyf[kr dksf'kdk ds dk;ksZ ds fy, dkSu ls dksf'kdk vaxd mŸkjnk;h gSa\ (i) dksf'kdk Üolu (ii) Ádk'k laÜys"k.k (iii) ÁksVhu la'ys"k.k LFky¼ikB&4 ns[ksa½

What is a cell organelle? Which ones are responsible for (i) cellular respiration, (ii) and photosynthesis and (iii) as site of protein synthesis. (See lesson-04)

(a) ,d chti=h o f}chti=h tM+ksa ds fuEufyf[kr va'kksa esa vUrj Li"V dhft, (i) laogu iwy (ii)

eTtk ¼ikB&6 ns[ksa½

State the difference in the characters of Dicot and Monocot roots with respect to (i) number of vascular bundles and the (ii) pith (See lesson-06) (b) fuEufyf[kr esa ls fdUgha nks ij ,d ,d okD; fyf[k,A ¼ikB&7 ns[ksa½

(i) okrja/kz

(ii) 'olu nj

Session 2018-19 (Biology - 314)

(30)

22

(iii) vok;oh; Üolu

Write one sentence each on any two of the following (See lesson-07) (i) Lenticels

(ii) Definition of fermentation (iii) Respiratory Quotient

(a) Loiks"kh iks"k.k o e`riks"kh iks"k.k esa D;k vUrj gS\ nksuksa iks"k.k ds Ádkj dk ,d ,d mnkgj.k

nhft,A ¼ikB&9 ns[ksa½

State the difference between autotrophs and Saprotrophs. Give an example of each.

(See lesson-9) (b) [kk| ikpu esa ekuo ds vkek'k; rFkk fiŸkk'k; ds Ádk;Z D;k gSa\ ¼ikB&13 ns[ksa½

Describe the functions of stomach and liver of humans in digestion. (See lesson-13)

(a) fuEufyf[kr Ákf.k;ksa dks ckáks"eh rFkk vkarjks"eh esa oxhZd`r dhft,A

Given below are names of certain animals classify them into ectotherms and endotherms.

Tiger, peacock, lizard, mosquito

(b) leLFkkiu dh ifjHkk"kk fyf[k,A ekuo 'kjhj ds rki dk fu;a=.k efLr"d dk dkSu lk Hkkx

djrk gS\ ¼ikB&8 ns[ksa½

Define homeostasis. Which part of the brain regulates temperature of the body in hu-

mans? (See lesson-8)

yscy lfgr pkj fp=ksa }kjk n'kkZb, fdl Ádkj vehck viuk Hkkstu ÁkIr djrk gSA

Draw four labelled diagrams of amoeba showing how it ingests its food.

(a) vkuqoaf'kd okD; }kjk blds rhu pj.kksa dk o.kZu dhft,A ¼ikB&24 ns[ksa½

What is Recombinant DNA technology? Describe in one sentence each three stages by

which this technology is carried out. (See lesson-24)

(b) fuEufyf[kr esa ls fdUgha nks ij fVIi.kh dhft,A

(i) Mh ,u , fQaxjfÁfUVax

(31)

23 (ii) Bt Qlysa

(iii) tSo pkS;Z

(iv) tSo isVsaV ¼ikB&24 ns[ksa½

Comment cany two of the following.

(i) DNA Fingerprinting (ii) Bt Crops

(iii) Biopiracy

(iv) Biopatent. (See lesson 24)

6- uhps nh xbZ nks ifj;kstukvksa dh lwph esa dksbZ ,d ifj;kstuk rS;kj dhft;sA

Make any one project out of the list of two projects given below. 6 (a) fuEufyf[kr esa ls fdlh Hkh ,d eqÌs ij ,d fp= }kjk xfBr pkVZ@,Yce vFkok ikoj ikWbUV

ÁstsUVs'ku cuk,aA

(i) oSfÜod rkiu (ii) tSo vko/kZu (iii) lqfriks"k.k

Prepare a pictorial chart/an album or a short power point presentation on any of one of the following topics.

(i) Global warming (ii) Biomagnification (iii) Entrophication

(b) iM+ksl ds fdlh vLirky vFkok fMLisaljh ;k jksxh ls (i) ,d ePNj }kjk QSyk;k x;k jksx o

(ii) ,d laØed jksx ds fo"k; esa rF; ,d= djds mls ÁcU/k@ikoj ikWwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwbaV@fp=@eksckby ls fy, x, fp= }kjk n'kkZb,A

Visit a nearby hospital or dispensary or a patient in the neighbourhood and find out about (i) one mosquito borne disease present your material as/lecture/powerpoint presentation from the material collected by you including pictures taken on your mobile.

(32)

24

HISTORY (315)

(ii)

(a) e/;dky esa Ñ"kdksa ds [ksrh ds rjhdksa dh foospuk dhft,A ¼ikB - 13 ns[ksa½

Discuss the crop pattern of Peasantry in Medieval Period? (Lesson - 13) (b) 18oha 'krkCnh ds e/; Áeq[k vkfFkZd ifjorZuksa ds fy, mŸkjnk;h dkjd D;k Fks\

¼ikB - 15 ns[ksa½

What were the factors for significant economic change in mid 18th Century?

(Lesson - 15) 2. fuEufyf[kr Á'uksa esa ls fdlh ,d dk mŸkj yxHkx 40&60 'kCnksa esa nhft,A 2

(a) ^dkuwu dk 'kklu* rFkk ^dkuwu ds le{k lekurk* dk D;k vFkZ gS\ ¼ikB - 16 ns[ksa½

What is meant by Rule of Law and Equality before Law? (Lesson - 16) (b) ;wjksi esa Þjk"Vªokn jk"Vª&jkT;ksa vkSj jk"Vªksa ds mn; gksus dk ifj.kke FkkAß O;k[;k dhft,A

¼ikB - 20 ns[ksa½

"Nationalism was the result of the emergence of nations and nation-state in Europe."

Explain. (Lesson - 20)

Session 2018-19 (History - 315)

(33)

25 3. fuEufyf[kr Á'uksa esa ls fdlh ,d Á'u dk mŸkj yxHkx 40&60 'kCnksa esa nhft,A 2

(a) 20oha lnh ds vkjaHk esa vkS|ksfxd fodkl ds dkj.k mHkjs u, lkekftd oxZ ds fy, mŸkjnk;h

fdUgha pkj dkjdksa dh O;k[;k dhft,A ¼ikB - 22 ns[ksa½

Explain any four factors responsible for emergence of new social classes due to industrial development in the beginning of 20th century. (Lesson - 22) (b) jk"Vªh; Lok/khurk ds ,d vkn'kZ ds :i esa 1917-1921 dh :lh ¼cksY'ksfod½ Økafr dh O;k[;k

dhft,A ¼ikB - 26 ns[ksa½

Explain the Russian (Bolshevik) Revolutin of 1917-1921 as a model of National liberation.

(Lesson - 26) 4. fuEufyf[kr Á'uksa esa ls fdlh ,d Á'u dk mŸkj yxHkx 100&150 'kCnksa esa nhft,A 4

(a) v'kksd ds f'kykys[kksa ds fo'ks"k lanHkZ esa f'kykys[kksa ds ,sfrgkfld egRo ij Ádk'k MkysaA

¼ikB - 1 ns[ksa½

Illustrate the historical importance of the inscriptions with special reference to Ashoka's

Inscriptions? (Lesson - 1)

(b) ^e/; ik"kk.k ;qx^ in dh ifjHkk"kk nsaA Hkkjr dh e/; ik"kk.k ;qxhu lH;rkvksa ds HkkSxksfyd foHkktu vkSj thou;kiu dh i)fr dh ppkZ djsaA ¼ikB - 2 ns[ksa½

Define the term the Mesolithic period. Discuss the Geographical distribution and subsistence pattern of the Mesolithic cultures of India. (Lesson - 2) 5. fuEufyf[kr Á'uksa esa ls fdlh ,d Á'u dk mŸkj yxHkx 100&150 'kCnksa esa nhft,A 4

(a) vkjafHkd e/;dky ds nkSjku gqbZ eq[; lkaLÑfrd miyfC/k;ksa dh O;k[;k dhft,A

¼ikB - 8 ns[ksa½

Explain the major cultural achievements during the early medieval period. (Lesson - 8) (b) d'ehj ds ,d egku 'kkld ds :i esa tSuqy vchnhu ds ;ksxnku dk vkdyu dhft,A

¼ikB - 11 ns[ksa½

Assess the contribution of Zainul Abidin as a great ruler of Kashmir. (Lesson - 11) 6. uhps nh xbZ ifj;kstukvksa dh lwph esa ls dksbZ ,d ifj;kstuk rS;kj dhft,A 6

Make any one Project out of the list of projects given below:

(a) ukxj] æfoM+ rFkk oslj 'kSyh ds eafnjksa ds fp= ,df=r dhft, rFkk budk leqfPpr fp=

¼dksYykt½ cuk,¡A fuEufyf[kr funsZ'kksa ds vk/kkj ij bl ifj;kstuk dks iwjk dhft,A

(34)

26

Collect pictures of Nagara, Dravida and Vesara style temple and make a collage of it. Do this project with the following guidelines.

• bl dky dk irk djsa tc eafnj cusa vkSj bUgsa fdlus cuok;k

• Find out the time period in which they were built and who built them.

• bu eafnjksa ds fuekZ.k esa fdl lkexzh dk Á;ksx fd;k x;kA

• Also find out the material which was used to build them.

• ml dky ds vU; 'kkldksa }kjk cukbZ xbZ bekjrksa dh rqyuk rRdkyhu mfYyf[kr eafnjksa ls dhft,A

• Compare them with the other monuments made by the other ruler/dynasty either of

same time (Lesson - 8)

(b) vius fuokl {ks= ds fudV fdlh Lye dk losZ{k.k dhft, rFkk mlds ty&ey fudklh O;oLFkk] lM+dsa vkSj lkSUn;Z dh izkphu gM+Iik lH;rk ls rqyuk dhft,A

Survey any slum area near your residence to compare the drainage system, roads and aesthetic with the city life an Ancient Harrappa.

(35)

27

GEOGRAPHY (316)

TUTOR MARKED ASSIGNMENT

(ii)

1- fuEufyf[kr esa ls fdlh ,d Á'u dk mŸkj yxHkx 40 ls 60 'kCnksa esa nhft,A 2

(a) mn~xkj dh ckjEckjrk ds vk/kkj ij rhu Ádkj ds Tokykeqf[k;ksa dk o.kZu dhft,\

¼ikB 4 ns[ksa½

Explain three types of Volcanoes on the basis of the frequency of eruption.

(See Lesson 4) (b) i`Foh ds dsUnz dh vksj tkus ij ?kuRo D;ksa c<+rk tkrk gSA Li"V dhft,\ ¼ikB 2 ns[ksa½

Why does the density increases towards the centre of the earth? Explain.(See Lesson 2)

(a) ,vjh vkSj ÁSV ds fopkjksa esa vUrj Li"V dhft,A ¼ikB 3 ns[ksa½

Distinguish between views of Airy and Pratt (See Lesson - 3) (b) lrr~ iks"k.kh; fodkl ds fy, viukbZ xbZ fdUgha rhu dk;Z uhfr;ksa dk o.kZu dhft,A

¼ikB 14 ns[ksa½

Explain any three strategies to be adopted for Sustainable Development.

(See Lesson - 14)

Session 2018-19 (Geography - 316)

(36)

28

(a) nf{k.k&if'pe ekulwu dh mŸifr ls iwohZ Hkkjr esa iouksa dh fn'kk D;ksa iyV tkrh gS\ Li"V

dhft,A ¼ikB 17 ns[ksa½

Why does reversal of winds take place in Eastern India before the onset of South West

mansoon? Explain. (See Lesson - 17)

(b) orZeku ifjn`'; esa ÅtkZ ds uohdj.kh; L=ksr vuohdj.kh; L=ksrksa dh rqyuk esa D;ksa vf/kd

egRoiw.kZ gSa\ ¼ikB 19 ns[ksa½

In current scenario, why the renewable sources of energy are more important than non-

renewable sources? (See Lesson - 19)

Answer any one of the following questions in about 100-150 words.

(a) Hkkjr esa Ñf"k ij vkfFkZd mnkjhdj.k ds ÁHkko dh O;k[;k dhft,A ¼ikB 22 ns[ksa½

Explain the impact of Economic Liberalisation on agriculture in India.

(See Lesson - 22) (b) gekjs i;kZoj.k ij thok"e bZa/kuksa ds Á;ksx ds ÁHkko dk o.kZu dhft,\ ¼ikB 23 ns[ksa½

Explain the effects of using fossil fuels on our environment. (See Lesson - 23)

Answer any one of the following questions in about 100-150 words.

(a) ^^LFkyh; ifjra= ekuo ds fy, [kk|inkFkZ vkSj dPps eky ds izeq[k lzksr gSaA** dksbZ pkj rdZ nsdj bl dFku dh iqf"V dhft,A

Terrestrial ecosystem are the major source of food and ra materials for human beings.”

Support this statement by giving four arguments

(b) Hkkjr ds js[kk ekufp= ij fuEufyf[kr dks mi;qDr fpUgksa }kjk n'kkZb, vkSj muds uke Hkh fyf[k,A

On the outline map of India, mark and label the following with appropriate symbols.

(i) dkjkdksje Js.kh (Karakoram Range) (ii) xksnkojh unh (Godawari River) (iii) vukbZeqMh (Annaimudi)

(iv) 20 lseh- ls de okf"kZd o"kkZ izkIr djus okys {ks= (Area receiving less than 20 cm rainfall)

(37)

29 6. uhps nh xbZ ifj;kstukvksa esa ls dksbZ ,d ifj;kstuk rS;kj dhft,A 6

(a) ifjokj }kjk ty mi;ksx ds ÁcU/ku ds fy, vius ifjokj ds lnL;ksa dh lgk;rk ls ,d losZ{k.k vk;ksftr djsaA 15 fnu ds fy, ifjokj ds fofHkUu enksa ij ty ds mi;ksx dh fuEu Ák:i ds vk/kkj ij lwpuk ,d= dhft, vkSj bu lwpukvksa dks O;ofLFkr dfj,A

lwpukvksa dk fo'ys"k.k djds 100 ls 150 'kCnksa dh ,d fjiksVZ ¼izfrosnu½ rS;kj dhft,A

To understand the management of utility of water in family conduct a survey with the help of family members. Collect the informations for consumption of water for 15 days in prescribed format as below. Arrange the informations properly, analyze and make a report in 100 to 150 words.

losZ{k.k dk Ák:i

Format of Survey

nSfud ty mi;ksx dh ek=k ¼yhVj esa½

Quantity of used Water per day (In litres)

Ø-la- mi;ksx fd;k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 5

Sl.No Utility of water

1 ikuh ihuk

Drinking

2 [kkuk cukuk

Cooking

3 ugkuk

Bathing

4 'kkSpky;

Lavarotory

5 oL= /kksuk

Washing of Cloths

6 crZu /kksuk

Washing of Utensils

7 Q'kZ dh lQkbZ

Cleaning of Floors

8 ckxokuh@vU;

Gardening/

Others