10th sst paper solutions set 1

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Who% among the following% was the hea& of the $evolutionary 'ociety forme& y )han !oi Chau? (A )rince Cuong "e (! )han !oi Chau (C )han Chu *rinh (" +iang Qichao
Answer :
(A) Prince Cuon !e
Q, : -n which one of the following -n&ian .ational Congress 'essions was the &eman& of /)urna 'wara0/ formalise& in "ecemer 1, ? (A 2a&ras 'ession (! +ahore 'ession (C Calcutta 'ession (" .agpur 'ession
Answer :
(B) "ahore Session

(A 'a&iya an& "huri (! Allahaa& an& al&ia (C 6&yogaman&al an& Champa77ara (" ottapuram an& omman
Answer :
(B) Allaha#ad and $aldia
Q9 : Which one of the following political parties came to power in !olivia in ,;? (A *he Communist )arty (! *he $epulican )arty (C *he 'ocialist )arty (" *he Conservative )arty
Answer :
%et Solutions o& all Previous Year Board Paper 'uestions Sinup"oin
Q5 : Which one of the following is the most popular form of government in the contemporary worl&? (A "ictatorship (! 2onarchy (C 2ilitary $ule (" "emocracy
Answer :
Q; : Which one of the following is a /.ational )olitical )arty/? (A 'ama0wa&i )arty (! $ashtriya <anata "al (C $ashtriya +o7 "al (" !ahu0an 'ama0 )arty
Answer :
Q= : Which one of the following &ays is eing oserve& as /.ational Consumer>s "ay/ in -n&ia?

(A ,9 "ecemer (! ,5 "ecemer (C 1 "ecemer (" 31 "ecemer
Answer :
Q8 : Which one of the following laws was enacte& y the overnment of -n&ia in #ctoer ,5? (A *he $ight to )roperty Act (! *he $ight to E&ucation Act (C *he Consumer )rotection Act (" *he $ight to -nformation Act
Answer :
Q : Which one of the following refers to investment? (A *he money spent on religious ceremonies (! *he money spent on social customs (C *he money spent to uy assets such as lan& (" *he money spent on househol& goo&s
Answer :
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ow &i& stu&ents in ietnam Bght against the colonial government>s eorts to prevent ietnamese from Dualifying for >white collar 0os>? E@plain4
Answer :

Q11 : Why &i& an&hi0i &eci&e to launch a nationwi&e Satyagraha against the propose& $owlatt Act% 11? E@plain4
Answer :
Q1, : "escrie the main features of the >'alt 2arch>4
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Q13 : What are the two main ways of generating electricity? ow are they &ierent from each other? E@plain4
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Q19 : .ame the nonmetallic mineral which can e split easily into thin sheets4 2ention its uses4
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Q15 : Why are eFcient means of transport prereDuisites for the fast &evelopment of the country? E@plain4
Answer :
Q1; : .ame the si@ >.ational )olitical )arties> in -n&ia in a chronological or&er4
Answer :

What inspiration &o we get from !olivia>s popular struggle? E@plain any three values that we can learn from it4
Answer :
Q18 : ow is &emocratic government 7nown as responsive government? E@plain with e@amples4
Answer :
Q1 : ow have mar7ets een transforme& in recent years? E@plain with e@amples4
Answer :
Q, : E@plain any three factors which gave irth to the >Consumer 2ovement> in -n&ia4
Answer :
Q,1 : E@plain with an e@ample% how cre&it plays a vital an& positive role for &evelopment4
Answer :
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E@plain% with e@amples% how religious groups playe& an important role in the &evelopment of anticolonial feelings in ietnam4
Answer :
Q,3 : ow &i& &ierent social groups conceive the i&ea of >.on Cooperation>? E@plain with e@amples4
Answer :
Q,9 : Why is there a pressing nee& for using renewale energy sources in -n&ia? E@plain any Bve reasons4
Answer :
Q,5 : /A&vancement of international tra&e of a country is an in&e@ to its prosperity4/ 'upport the statement with suitale e@amples4
Answer :
Q,; : /Aout hun&re& years ago there were few countries that ha& har&ly any political party4 .ow there are few countries that &o not have political parties4/ E@amine the statement4
Answer :
Q,= : Compare the popular struggles of .epal an& !olivia4
Answer :
Q,8 : /loalisation has een a&vantageous to consumers as well as to pro&ucers4/ 'upport the statement with suitale e@amples4
Answer :
Q, : Why are rules an& regulations reDuire& in the mar7etplace? E@plain4
Answer :
Q3 : (341 *wo features A an& ! are mar7e& in the political outline map of -n&ia4 -&entify these features with the help of the following information an& write their correct names on the lines mar7e& in the map : A4 *he place where the -n&ian .ational Congress 'ession was hel& in 1,=4 !4 *he place which is associate& with the movement of -n&igo )lanters4
(34, #n the same political outline map of -n&ia% locate an& lael the following with appropriate symols : (i .arora a nuclear power plant (ii $our7ela an iron an& steel plant (iii an&la a ma0or sea port4
Answer :

10th Sst Paper Solutions Set 1 : CBSE !elhi Previous Year 2014 General Instructions : (i) The question paper has 30 questions in all. All questions are compulsory. (ii) Marks for each question are indicated against the question. (iii) Questions from serial number 1 to 9 are Multiple Choice Questions. Each question carries 1 mark. (i) Questions from serial number 10 to 21 are 3 marks questions. Ans!ers of these questions should not e"ceed 80 !ords each. () Questions from serial number 22 to 29 are 5 marks questions. Ans!ers of these questions should not e"ceed 120 !ord each. (i) Question number 30 is a map question of 5 marks ( 2 marks from #istory and 3 marks from $eography). (ii) Attach the %lled up map inside your ans!er&book.
Q1 : Which among the following was the main reason for the weavers to revolt against contractors in 'ilesia% in 1895?

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Which among the following was the main reason to start the >*on7in Gree 'chool> in ietnam?
(A *o provi&e >Western 'tyle E&ucation> (! *o provi&e >2o&ern E&ucation> (C *o provi&e >'cience E&ucation> (" *o popularise the >Grench +anguage>
Answer :
or
(A) ,o provide -.estern St*le Education-
Q, : -n which one of the following places 2ahatma an&hi organise& 'atyagraha for the Brst time in -n&ia?
(A "an&i (! Ahme&aa& (C he&a (" Champaran
Answer :
(!) Cha+paran
Q3 : Which one of the following has een the ma0or source of foreign e@change for -* in&ustry?
(A !harat eavy Electricals +imite& (! #il -n&ia +imite& (C 'teel Authority of -n&ia +imite& (" !usiness )rocess #utsourcing
Answer :

Which one of the following statements is correct regar&ing >sectional interest groups>? (A *hey promote collective rather than selective goo&4 (! *heir principal concern is etterment an& well eing of their memers% not society in general4 (C *hey aim to help groups other than their own memers4 (" *hey &o not see7 to promote the interest of a particular section or group of society4
Answer :
Q5 : Which one of the following facilities is oere& y the >Election Commission> to a recognise& political party?
(A )arty name (! Election Gun&s (C Election symol (" 2anifesto
Answer :
Q; : Which one of the following is an e@ample of outcomes of a &emocracy that pro&uces an accountale government? (A #pen to pulic &eates on ma0or policies an& legislation (! #pen in promoting economic &evelopment (C #pen in re&ucing economic ineDualities (" #pen to rulers electe& y the people
Answer :
Q= : Which one of the following is a formal source of cre&it? (A *ra&ers (! Cooperative societies (C 2oneylen&ers (" Grien&s an& relatives

Q8 : Which one of the following is the appropriate meaning of collateral? (A -t is the sum total of money orrowe& from an7s (! *he amount orrowe& from frien&s (C -t is an asset of the orrower use& as guarantee to a len&er (" *he amount investe& in a usiness
Answer :
Q : Which one of the following organisations lays stress on lieralisation of foreign tra&e an& foreign investment? (A -nternational 2onetary Gun& (! -nternational +aour #rganisation (C Worl& ealth #rganisation (" Worl& *ra&e #rganisation
Answer :
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Why &i& a ma0or protest erupt in 1,; in the 'aigon .ative irls 'chool in ietnam? E@plain4
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Q11 : E@plain the i&ea of 'atyagraha accor&ing to an&hi0i4
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Q1, : "escrie any three suppressive measures ta7en y the !ritish a&ministration to clamp&own on nationalists4
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Q13 : Why is energy reDuire& for all activities? ow can energy e generate&? E@plain
Answer :
Q19 : ow &o means of transport an& communication play an important role in the economic &evelopment of the country? E@plain4
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Q15 : >Environmental &egra&ation has een seen everywhere4> E@plain any three values that can help to prevent environment &egra&ation4
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Q1; : Why &o we nee& political parties? E@plain4
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Q1= : ow are popular struggles integral to the wor7ing &emocracy? E@plain with an e@ample of !olivia>s struggle against privatisation of water4
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Q18 : ow is &emocratic government 7nown as responsive government? E@plain with an e@ample4
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Q1 : ow &oes money solve the prolem of &oule coinci&ence of wants? E@plain with an e@ample4
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Q, : ow has information an& communication technology stimulate& the gloalisation process? E@plain with e@amples4
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Q,1 : ow has a threetier Duasi0u&icial machinery een set up for re&ressal of consumer &isputes? E@plain4
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/*he measures ta7en y the Grench to control the sprea& of uonic plague in anoi create& a serious prolem4/ E@plain the statement4
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Q,3 : ow coul& noncooperation ecome a movement? E@plain with e@amples4
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Q,9 : Why is conservation of minerals essential? E@plain any four measures to conserve minerals4
Answer :
Q,5 : />Agriculture> an& >in&ustry> are complementary to each other4/ E@plain with Bve e@amples4
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Q,; : ow has the struggle of the .epali people ecome a source of inspiration to &emocrats all over the worl&? E@plain4
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Q,= : Why cannot mo&ern &emocracies e@ist without political parties? E@plain4
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Q,8 : E@plain the role of multinational corporations in the gloalisation process4
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Q, : ow &oes e@ploitation of consumers ta7e place in the mar7et? E@plain with any Bve facts4
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Q3 : (341 *wo features A an& ! are mar7e& in the political outline map of -n&ia4 -&entify these features with the help of the following information an& write their correct names on the lines mar7e& in the map: (A *he place where the -n&ian .ational Congress 'ession was hel& in 'eptemer 1, (! *he place where the cotton mill wor7ers 'atyagraha was organise& in 118
(34, #n the same political outline map of -n&ia% locate an& lael the following with appropriate symols: (i !hilai iron an& steel plant (ii Coimatore cotton te@tile centre (iii $a0a 'ansi international airport
Answer :
10th Sst Paper Solutions Set 1 : CBSE All India Previous Year 2014 Q1 : What type of conservative regimes were set up in 1815 in Europe? Choose the appropriate answer for the following : (A Autocratic (! "emocratic (C Aristocratic
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Who% among the following% was the hea& of the $evolutionary 'ociety forme& y )han !oi Chau? (A )rince Cuong "e (! )han !oi Chau (C )han Chu *rinh (" +iang Qichao
Answer :
(A) Prince Cuon !e
Q, : -n which one of the following -n&ian .ational Congress 'essions was the &eman& of /)urna 'wara0/ formalise& in "ecemer 1, ? (A 2a&ras 'ession (! +ahore 'ession (C Calcutta 'ession (" .agpur 'ession
Answer :
(B) "ahore Session
Q3 : .ational Waterway .o4 1 is navigale etween which of the following places? (A 'a&iya an& "huri (! Allahaa& an& al&ia (C 6&yogaman&al an& Champa77ara (" ottapuram an& omman
Answer :
(B) Allaha#ad and $aldia

(! *he $epulican )arty (C *he 'ocialist )arty (" *he Conservative )arty
Answer :
Q5 : Which one of the following is the most popular form of government in the contemporary worl&? (A "ictatorship (! 2onarchy (C 2ilitary $ule (" "emocracy
Answer :
Q; : Which one of the following is a /.ational )olitical )arty/? (A 'ama0wa&i )arty (! $ashtriya <anata "al (C $ashtriya +o7 "al (" !ahu0an 'ama0 )arty
Answer :
Q= : Which one of the following &ays is eing oserve& as /.ational Consumer>s "ay/ in -n&ia? (A ,9 "ecemer (! ,5 "ecemer (C 1 "ecemer (" 31 "ecemer
Answer :
Q8 : Which one of the following laws was enacte& y the overnment of -n&ia in #ctoer ,5? (A *he $ight to )roperty Act

(! *he $ight to E&ucation Act (C *he Consumer )rotection Act (" *he $ight to -nformation Act
Answer :
Q : Which one of the following refers to investment? (A *he money spent on religious ceremonies (! *he money spent on social customs (C *he money spent to uy assets such as lan& (" *he money spent on househol& goo&s
Answer :
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ow &i& stu&ents in ietnam Bght against the colonial government>s eorts to prevent ietnamese from Dualifying for >white collar 0os>? E@plain4
Answer :
Q11 : Why &i& an&hi0i &eci&e to launch a nationwi&e Satyagraha against the propose& $owlatt Act% 11? E@plain4
Answer :
Q1, : "escrie the main features of the >'alt 2arch>4

Q13 : What are the two main ways of generating electricity? ow are they &ierent from each other? E@plain4
Answer :
Q19 : .ame the nonmetallic mineral which can e split easily into thin sheets4 2ention its uses4
Answer :
Q15 : Why are eFcient means of transport prereDuisites for the fast &evelopment of the country? E@plain4
Answer :
Q1; : .ame the si@ >.ational )olitical )arties> in -n&ia in a chronological or&er4
Answer :
Q1= : What inspiration &o we get from !olivia>s popular struggle? E@plain any three values that we can learn from it4
Answer :
Q18 : ow is &emocratic government 7nown as responsive government? E@plain with e@amples4

Q1 : ow have mar7ets een transforme& in recent years? E@plain with e@amples4
Answer :
Q, : E@plain any three factors which gave irth to the >Consumer 2ovement> in -n&ia4
Answer :
Q,1 : E@plain with an e@ample% how cre&it plays a vital an& positive role for &evelopment4
Answer :
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E@plain% with e@amples% how religious groups playe& an important role in the &evelopment of anticolonial feelings in ietnam4
Answer :
Q,3 : ow &i& &ierent social groups conceive the i&ea of >.on Cooperation>? E@plain with e@amples4
Answer :

Why is there a pressing nee& for using renewale energy sources in -n&ia? E@plain any Bve reasons4
Answer :
Q,5 : /A&vancement of international tra&e of a country is an in&e@ to its prosperity4/ 'upport the statement with suitale e@amples4
Answer :
Q,; : /Aout hun&re& years ago there were few countries that ha& har&ly any political party4 .ow there are few countries that &o not have political parties4/ E@amine the statement4
Answer :
Q,= : Compare the popular struggles of .epal an& !olivia4
Answer :
Q,8 : /loalisation has een a&vantageous to consumers as well as to pro&ucers4/ 'upport the statement with suitale e@amples4
Answer :
Q, : Why are rules an& regulations reDuire& in the mar7etplace? E@plain4
Answer :

(341 *wo features A an& ! are mar7e& in the political outline map of -n&ia4 -&entify these features with the help of the following information an& write their correct names on the lines mar7e& in the map : A4 *he place where the -n&ian .ational Congress 'ession was hel& in 1,=4 !4 *he place which is associate& with the movement of -n&igo )lanters4
(34, #n the same political outline map of -n&ia% locate an& lael the following with appropriate symols : (i .arora a nuclear power plant (ii $our7ela an iron an& steel plant (iii an&la a ma0or sea port4
Answer :

10th Science Paper Solutions Set 1 : CBSE All India Previous Year 2014
eneral -nstructions: (i) ,he uestion paper co+prises o& to Sections A and B3 You are to atte+pt #oth the sections3 (ii) All uestions are co+pulsor*3 (iii) All uestion o& SectionA and all uestions o& SectionB are to #e atte+pted separatel*3 (iv) 'uestion nu+#ers 1 to in SectionA are one +ar5 uestions3 ,hese are to #e ansered in one ord or in one sentence3 (v) 'uestion nu+#ers 4 to 6 in SectionsA are to +ar5s uestions3 ,hese are to #e ansered in a#out 0 ords each3 (vi) 'uestion nu+#er 7 to 18 in SectionA are three +ar5s uestions3 ,hese are to #e ansered in a#out 90 ords each3 (vii) 'uestion nu+#ers 20 to 24 in SectionA are ve +ar5s uestions3 ,hese are to #e ansered in a#out 60 ords each3 (viii) 'uestion nu+#ers 29 to 42 in SectionB are +ultiple choice uestions #ased on practical s5ills3 Each uestion is a one +ar5 uestion3 You are to select one +ost appropriate response out o& the &our provided to *ou3
Q1 : +ist any two properties of the elements elonging to the Brst group of the mo&ern perio&ic tale4
Answer :

13 ,hese ele+ents e<hi#it =1 valenc*3 23 ,hese are ver* reactive that do not &ound &reel* in nature3
Q, : What is a gene?
Answer :
%ene is a part o& !>A that encodes the instructions that allo a cell to produce a specic protein or en?*+e3
Q3 : ive one e@ample each from your &aily life where the &omestic waste can e eectively reuse& an& recycle&4
Answer :
@euse: .e can reuse the e+pt* #ottles o& a+ pic5les etc &or the storae purposes3 @ec*cle: .e can rec*cle old nespapers alu+iniu+ cans etc3
Q9 : What is the main &ierence etween sperms an& eggs of humans? Write the importance of this &ierence4
Answer :
Q5 : +ist two possile ways in which a concave mirror can pro&uce a magniBe& image of an o0ect place& in front of it4 'tate the &ierence% if any% etween these two images4
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Q; : What are &ecomposers? +ist two important roles they play in the environment4
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Q= : Why is sustainale management of natural resources necessary? #ut of the two metho&s reuse an& recycle which one woul& you suggest to practise an& why?
Answer :
Q8 : What are homologous series of caron compoun&s? Write the molecular formula of two consecutive memers of homologous series of al&ehy&es4 'tate which part of these compoun&s &etermines their (i physical an& (ii chemical properties4
Answer :
Q : A caro@ylic aci& (molecular formula C,9#, reacts with an alcohol in the presence of an aci& catalyst to form a compoun& >H>4 *he alcohol on o@i&ation with al7aline 2n#9 followe& y aci&iBcation gives the same caro@ylic aci& C,9#,4 Write the name an& structure of (i caro@ylic aci&% (ii alcohol an& (iii the compoun& >H>4
Answer :
Q1 : *he electrons in the atoms of four elements A% !% C an& " are &istriute& in three shells having 1% 3% 5 an& = electrons in the outermost shell respectively4 'tate the perio& in which these elements can e place& in the mo&ern perio&ic tale4 Write the electronic conBguration of the atoms of A an& " an& the molecular formula of the compoun& forme& when A an& " comine4
Answer :
Q11 : 'tu&y the following tale in which positions of si@ elements A% !% C% "% E an& G are shown as they are in the mo&ern perio&ic tale:

#n the asis of the aove tale% answer the following Duestions: (i .ame the element which forms only covalent compoun&s4 (ii .ame the element which is a metal with valency three4 (iii .ame the element which is a nonmetal with valency three4 (iv #ut of " an& E% which is igger is siIe an& why? (v Write the common name for the family to which the elements C an& G elong4
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Q1, : E@plain the process of regeneration in Planaria4 ow is this process &ierent from repro&uction?
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Q13 : What is placenta? 'tate its function in human female4
Answer :
Q19 : With the help of suitale e@amples% e@plain why certain traits cannot e passe& on to the ne@t generation4 What are such traits calle&?
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Q15 : /A trait may e inherite&% ut may not e e@presse&4/ <ustify this statement with the help of a suitale e@ample4
Answer :
Q1; : A stu&ent wants to pro0ect the image of a can&le Jame on a screen ; cm in front of a mirror y 7eeping the Jame at a &istance of 15 cm from its pole4 (a Write the type of mirror he shoul& use4 ( Gin& the linear magniBcation of the image pro&uce&4

(c What is the &istance etween the o0ect an& its image? (& "raw a ray &iagram to show the image formation in this case4
Answer :
Q1= : "raw a ray &iagram to show that path of the refracte& ray in each of the following cases : A ray of light inci&ent on a concave lens is (i passing through its optical centre4 (ii parallel to its principal a@is4 (iii &irecte& towar&s its principal focus4
Answer :
Q18 : A narrow eam )Q of white light is passing through a glass prism A!C as shown in the &iagram4
*race it on your answer sheet an& show the path of the emergent eam as oserve& on the screen "E4 (i Write the name an& cause of the phenomenon oserve&4 (ii Where else in nature is this phenomenon oserve& ? (iii !ase& on this oservation% state the conclusion which can e &rawn aout the constituents of white light4
Answer :
Q1 : /Energy Jow in a foo& chain is uni&irectional4/ <ustify this statement4 E@plain how the pestici&es enter a foo& chain an& suseDuently get into our o&y4

Q, : Elements forming ionic compoun&s attain nole gas conBguration y either gaining or losing electrons from their outermost shells4 ive reason to e@plain why caron cannot attain nole gas conBguration in this manner to form its compoun&s4 .ame the type of on&s forme& in ionic compoun&s an& in the compoun&s forme& y caron4 Also give reason why caron compoun&s are generally poor con&uctors of electricity4
Answer :
Q,1 : (a "raw a sectional view of human female repro&uctive system an& lael the part where (i eggs &evelop4 (ii fertilisation ta7e place4 (iii fertilise& egg gets implante&4 ( "escrie% in rief% the changes the uterus un&ergoes4 (i to receive the Iygote4 (ii if Iygote is not forme&4
Answer :
Q,, : (a .ame the parts laelle& as A% !% C an& " in the &iagram given elow:
( What is pollination? 'tate its signiBcance4 (c ow &oes fertilisation occur in Jowers? .ame the parts of the Jower that &evelop into (i see&% an& (ii fruit after fertilisation4

Q,3 : (a E@plain the following terms relate& to spherical lenses : (i optical centre (ii centres of curvature (iii principal a@is (iv aperture (v principal focus (vi focal length ( A converging lens has focal length of 1, cm4 Calculate at what &istance shoul& the o0ect e place& from the lens so that it forms an image at 98 cm on the other si&e of the lens4
Answer :
Q,9 : (a +ist the parts of the human eye that control the amount of light entering into it4 E@plain how they perform this function4 ( Write the function of retina in human eye4 (c "o you 7now that the cornealimpairment can e cure& y replacing the &efective cornea with the cornea of the &onate& eye? ow an& why shoul& we organise groups to motivate the community memers to &onate their eyes after &eath?
Answer :
Q,5 : -n an e@periment to stu&y the properties of ethanoic aci&% a stu&ent ta7es aout 3 m+ of ethanoic aci& in a &ry test tue4 e a&&s an eDual amount of &istille& water to it an& sha7es the test tue well4 After some time he is li7ely to oserve that (A a colloi& is forme& in the test tue4 (! the ethanoic aci& &issolves rea&ily in water4 (C the solution ecomes light orange4 (" water Joats over the surface of ethanoic aci&4
Answer :
Q,; : A stu&ent ta7es aout , m+ ethanoic aci& in a &ry test tue an& a&&s a pinch of so&ium hy&rogen caronate to it4 e reports the following oservations:

-4 -mme&iately a colourless an& o&ourless gas evolves with a ris7 eervescence4 --4 *he gas turns lime water mil7y when passe& through it4 ---4 *he gas urns with an e@plosion when a urning splinter is rought near it4 -4 *he gas e@tinguishes the urning splinter that is rought near it4 *he correct oservations are (A -% -- an& --- (! --% --- an& - (C ---% - an& - (" -% -- an& -
Answer :
Q,= : We nee& ,K aDueous solution of so&ium hy&ro@i&e for the stu&y of saponiBcation reaction4 When we open the li& of the ottle containing soli& so&ium hy&ro@i&e we oserve it in which form? (A Colourless transparent ea&s (! 'mall white ea&s (C White pelletsLJa7es (" Gine white pow&er
Answer :
Q,8 : While stu&ying saponiBcation reaction% a stu&ent measures the temperature of the reaction mi@ture an& also Bn&s its nature using lueLre& litmus paper4 #n the asis of his oservations the correct conclusion woul& e (A the reaction is e@othermic an& the reaction mi@ture is aci&ic4 (! the reaction is en&othermic an& the reaction mi@ture is aci&ic4 (C the reaction is en&othermic an& the reaction mi@ture is asic4 (" the reaction is e@othermic an& the reaction mi@ture is asic4
Answer :
Q, : -n a locality% har& water% reDuire& for an e@periment% is not availale4 owever% the following salts are availale in the school laoratory: 14 'o&ium sulphate ,4 Calcium sulphate

34 2agnesium chlori&e 94 'o&ium chlori&e 54 Calcium chlori&e ;4 )otassium sulphate Which of the aove salts may e &issolve& in water to otain har& water for the e@periment? (A ,% 3 an& 5 (! 1% , an& 5 (C 1% ,% 9 an& ; (" 3 an& 5 only
Answer :
Q3 : A stu&ent has otaine& an image of a wellilluminate& &istant o0ect on a screen to &etermine the focal length% G1 of the given spherical mirror4 *he teacher then gave him another mirror of focal length% G, an& as7e& him to otain a focusse& image of the same o0ect on the same screen4 *he stu&ent foun& that in or&er to focus the same o0ect using the secon& mirror% he has to move the mirror away from the screen4 Grom this oservation it may e conclu&e& that oth the spherical mirrors given to the stu&ent were (select the correct option (A Concave an& G1 M G,
(! Concave an& G1 N G,
(C Conve@ an& G1 M G,
(" Conve@ an& G1 N G,
Answer :
Q31 : A stu&ent focusse& the 'un rays using an optical &evice >H> on a screen ' as shown4
Grom this it may e conclu&e& that &evice >H> is a (select the correct option

(A Conve@ lens of focal length 1 cm4 (! Conve@ lens of ra&ius of curvature , cm4 (C Conve@ lens of focal length , cm4 (" Concave mirror of focal length , cm4
Answer :
Q3, : After tracing the path of a ray of light passing through a rectangular glass sla for four &ierent values of the angle of inci&ence% a stu&ent reporte& his oservations in taular form as given elow:
Answer :
Q33 : A stu&ent traces the path of a ray of light passing through a rectangular glass sla an& mar7s the angle of inci&ence i% angle of refraction r an& angle of emergence e% as shown4
*he correctly mar7e& angle(s isLare (A Oi only (! Oe only (C Or only (" Oi an& Oe
Answer :
Q39 : 'tu&y the following &iagrams in which the path of a ray of light passing through a glass prism as trace& y four stu&ents )% Q% $ an& ' is shown:

*he stu&ent who has trace& the path correctly is (A ) (! Q (C $ (" '
Answer :
Q35 : -n the following &iagram% the path of a ray of light passing through a glass prism is shown:
-n this &iagram the angle of inci&ence% the angle of emergence an& the angle of &eviation respectively are (select the correct option: (A H% $ an& * (! P% Q an& * (C H% Q an& ) (" P% Q an& )
Answer :

Q3; : A stu&ent is using a conve@ lens of focal length 1 cm to stu&y the image formation y a conve@ lens for the various positions of the o0ect4 -n one of his oservations% he may oserve that when the o0ect is place& at a &istance of , cm from the lens% its image is forme& at (select the correct option (A , cm on the other si&e of the lens an& is of the same siIe% real an& erect4 (! 9 cm on the other si&e of the lens an& is magniBe&% real an& inverte&4 (C , cm on the other si&e of the lens an& is of the same siIe% real an& inverte&4 (" , cm on the other si&e of the lens an& is of the same siIe% virtual an& erect4
Answer :
Q3= : A stu&ent is using a conve@ lens of focal length 18 cm to stu&y the image formation y it for the various positions of the o0ect4 e oserves that when he places the o0ect at ,= cm% the location of the image is at 59 cm on the other si&e of the lens4 -&entify from the following &iagram the three rays that oeying the laws of refraction an& may e use& to &raw the correspon&ing ray &iagram4
(A 1% , an& 9 (! 1% 3 an& 5 (C ,% 9 an& 5 (" ,% 3 an& 9
Answer :
Q38 : A stu&ent has to focus his compoun& microscope to oserve a prepare& sli&e showing &ierent stages of inary Bssion in Amoeba4 *he steps he is li7ely to follow are liste& elow in a haphaIar& manner:

-4 A&0ust the &iaphragm an& the mirror of the microscope so that suFcient light may enter to illuminate the sli&e4 --4 Gi@ the sli&e on the stage carefully4 ---4 A&0ust the microscope to high power an& focus4 -4 A&0ust the microscope to low power an& focus4 *he correct seDuence of the aove steps to oserve the sli&e un&er the microscope is (A -% --%-% --- (! --% -% -% --- (C --% -% -% --- (" -% -% --% ---
Answer :
Q3 : When you stu&y a sli&e showing &ierent stages of u&&ing in yeast% you oserve the following stages: -4 *he u& may get separate& from the parent o&y an& &evelop into a new in&ivi&ual4 --4 *he o&y of the u& &evelops an& gives rise to another ay u&4 ---4 A u& comes out in any &irection from the o&y of the parent cell4 -4 *hus they may form a colony4 *he proper seDuence of the aove stages is (A --% -% ---% - (! --% ---% -% - (C ---% --% -% - (" ---% -% --% -
Answer :
Q9 : 'tu&y the following statements : -4 Wings of ir&s an& wings of ats are homologous organs4 --4 Wings of ir&s an& wings of insects are mo&iBe& forelims4 ---4 Wings of ir&s an& wings of insects are analogous organs4 -4 Wings of ir&s an& forelims of horse an& homologous organs4 *he correct statements are (A - an& -- (! -- an& --- (C --- an& - (" - an& -

Q91 : Which of the following pairs of two vegetales represents the correct homologous structures? (A 'weet potato an& potato (! 'weet potato an& tomato (C Carrot an& potato (" $a&ish an& carrot
Answer :
Q9, : -n the following &iagram showing the structure of emryo of a &icot see&% what are the parts mar7e& -% -- an& --- seDuentially?
(A )lumule% Cotyle&on% $a&icle (! )lumule% $a&icle% Cotyle&on (C Cotyle&on% )lumule% $a&icle (" $a&icle% )lumule% Cotyle&on
Answer :

10th sst paper solutions set 1

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