GANGA INTERNATIONAL SCHOOL, SAWDA GHEVRA-NIZAMPUR GHEVRA-NIZAMP UR ROAD, NEW DELHI-81
HOLIDAY HOMEWORK (2012-13) CLASS II S 1! ENGLISH Dear students, I"#$ %&'*+ " &./ **. ! We want you to enjoy your vacation so that you come back to the school refreshed and rejuvenated. At the same time we want you to remain in touch with your studies. For this we have designed an interesting and enriching Holiday Homework. Heres your chance to be truly creative let your thoughts run a race with your "en and just write, write, write! # $ead the the lessons lessons given in your your syllabus.% syllabus.%ou ou may choose thematic thematic content content of any any two lessons and write on them as you "lease in the form of an article ,&"eech ,Debate or $e"ort. For instance you choose '(he )ost &"ring.%ou can e*"ress your views on '+hild )abour.Writing &ection File Desi Design gn "os "oste ters rs on on any any two two socia sociall issu issues es to create awareness amongst general masses. / +ollect +ollect Five Five +lassife +lassifed d and Five Dis"lay Dis"lay Advertis Advertisements ements from 0ews"a"ers 0ews"a"ers and "aste in your Files for Writing &ection. 1. +om"ile a 2uestion 3ank with at least #4 s"ecimen 5uestions from each lesson of Flamingo in your )iterature 0otebook. 0otebook. 6. $ead the "oems '7y 7other at &i*ty &i*ty &i* and 'Aunt 8ennifers (igers and write the thematic content of both the "oems. Also write your inter"retations of the "oems. 6. P* & "% U." T$"
2! CHEMISTRY A) C&'" C&'" *. 4$ 4$ &''&5 &''&5. . /%*"$! /%*"$! () H*'&*'6*.$ *. *. H* H*'&*.$! () A'/%&% %&%&', % %.& .&' *. *. " "%$! $! ( ()) A'%+ '%+ ,, K"& K"&. . *. *. C*7& C*7&+' +'/ / */ */ 9) C&'" C&'" 4. *$$. *$$.."$ ."$ .. .. &. *7&4 /%*"$! /%*"$! C) M*6 &:/" &:/" &. 4. $;7:/"$! $;7:/"$!
3! COMPUTER SCIENCE 1! L*. *'' "% M+S - 2012) 9&* <;$"&. *$!
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?! PHYSICAL EDUCATION P*" 9 (P&:/" @') @&''&5. $;7 "&/$ '*" "& 9*$6"7*'' U." 1 #.# History of the 9ame:&"ort #. )atest 9eneral $ules of the 9ame:&"ort #./ &"ecifications of ;lay Fields and $elated &"orts <5ui"ments #.1 =m"ortant (ournaments and >enues #.6 &"orts ;ersonalities #.? ;ro"er &"orts 9ear and its =m"ortance U." 2 .# Fundamental &kills of the 9ame:&"ort . &"ecific <*ercises of Warm@u" and +onditioning ./ $elated &"orts (erminologies .1 &"orts Awards .6 +ommon &"orts =njuries its ;revention .? &9F= its BrganiCational &et@"
! PHYSICS EDo an investigatory "roject on one of the following to"ics.
#. (o study various factors on which the internal resistance:emf of a cell de"ends. . (o study the variations, in current flowing, in a circuit containing a )D$, because of a variation. a- in the "ower of the incandescent lam", used to illuminate the )D$. Gee"ing all the lam"s at a fi*ed distance-. b- in the distance of a incandescent lam", of fi*ed "ower-, used to illuminate the )D$. /. (o find the refractive indices of a- water b- oil trans"arent- using a "lane mirror, a e5uiconve* lens, made from a glass of known refractive inde*- and an adjustable object needle. 1. (o design an a""ro"riate logic gate combination for a given truth table. 6. (o investigate the relation between the ratio of i- out"ut and in"ut voltage and ii- number of turns in the secondary coil and "rimary coil of a self designed transformer. ?. (o investigate the de"endence, of the angle of deviation, on the angle of incidence, using a hollow "rism filled, one by one, with different trans"arent fluids. . (o estimate the charge induced on each one of the two identical styro foam or "ithballs sus"ended in a vertical "lane by making use of +oulombs law. I. (o set u" a common base transistor circuit and to study its in"ut and out"ut characteristic and to calculate its current gain. J. (o study the factor, on which the self inductance, of a coil, de"ends, by observing the effect of this coil, when "ut in series with a resistor:bulb- in a circuit fed u" by an a.c. source of adjustable fre5uency. #4. (o construct a switch using a transistor and to draw the gra"h between the in"ut and out"ut voltage and mark the cut@off, saturation and active regions.
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B! MATHEMATICS Relations and functions
1. If A is the set of students of a school then write, which of following relations are. (Universal, Empty or neither of the two).
R 1 = {(a, b ) : a, b are ages of students and |a – b | 0} R 2 = {(a, b ) : a, b are weights of students, and | a – b | < 0} R 3 = {(a, b ) : a, b are students studying in same class} R 4 = {(a, b ) : a, b are age of students and a > b } 2. Is the relation R in the set A = {1, 2, 3, 4, 5} defined as R = {(a, b ) : b = a + 1} reflexive? 3. If R , is a relation in set N given by R = {(a , b) : a = b – 3, b > 5},then does elements (5, 7) R? 4. If f : {1, 3} {1, 2, 5} and g : {1, 2, 5} {1, 2, 3, 4} be given by f = {(1, 2), (3, 5)}, g = {(1, 3), (2, 3), (5, 1)}Write down gof.
5. Let * is a Binary operation defined on R , then if (i) a * b = a + b + ab , write 3 * 2 (ii) a * b = 4a – 9b 2, Write (1 * 2) * 3. 6. If n (A) = n (B ) = 3, Then how many bijective functions from A to B can be formed? 7. If f (x ) = x + 1, g (x ) = x – 1, Then (gof) (3) = ?
8. Is f : N
9. If f : R
→
→
N given by f (x ) = x- 2 is one-one? Give reason.
A, given byf (x ) = x 2 – 2x + 2 is onto function, find set A.
10. If f : A → B is bijective function such that n (A) = 10, then n (B ) = ? 11. If n (A) = 5, then write the number of one-one functions from A to A. 12. R = {(a, b ) : a, b N , a b and a divides b }. Is R reflexive? Give reason? 13. Is f : R R, given by f (x ) = |x – 1| is one-one? Give reason? 14. f : R B given by f (x ) = sin x is onto function, then write set B . 15. Is f : R → R, f (x ) = x 3 is bijective function? 16. If
*
is Binary operation on N defined by a b = a + ab a , b N. Write *
the identity element in N if it exists 17 Let be a binary operation on Q. Such that a b = a + b – ab . *
*
(i)
Prove that is commutative and associative.
(ii)
Find identify element of
*
*
in Q (if it exists).
18. If A = N × N and binary operation
*
is defined on A as
(a, b ) (c , d ) = (a+c, b+d ). *
(i)
(Check
*
for commutativity and associativity.
(ii) Find the identity element for
*
in A (If it exists).
19. Show that the relation R defined by (a, b ) R (c, d ) a + d = b + c on he set N × N is an equivalence relation.
>! 9IOLOGY 1!D& *. .4$"*"&+ &:/" &. "% 4. "&/$ *)P$./ & .*'$,*"$,&".$ *. /*7&%+*"$ . ." && $";$! 7) E/"$ & ." /%/*'$ &. '*."$! /) 9&. .$"+ "$"! ) @."*"&. ! 2! L*. "5& /%*"$ & U." T$" -1! 3! C&'" +&; */"/*'$ . L*7 M*.;*'!
