Aakash. For Class XII Studying / Passed Students. Physics, Chemistry & Mathematics

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1 Aakash A UNIQUE PPRTUNITY T HELP YU FULFIL YUR DREAMS Fo Class XII Studying / Passd Studnts Physics, Chmisty & Mathmatics Rgistd ffic: Aakash Tow, 8, Pusa Road, Nw Dlhi Ph.: (0) Fax: (0)

3 Sampl Pap (Engining) Aakash Talnt Qust 07 Aakash Talnt Qust 07 (fo Class XII Studying / Passd Studnts) (Th qustions givn in sampl pap a indicativ of th lvl and pattn of qustions that will b askd in ATQ 07) SECTIN-A : PHYSICS. An -paticl is moving in a cicula obit of adius R with fquncy f. Th magntic fild at th cnt of th obit is 3. Equivalnt sistanc btwn points A and B is 0 f R f 0 R () f 0 R Zo A B. Th maximum chag can b givn to th out sufac so that th is no bakdown of ai aound. Givn that bakdown fild stngth of ai is E b (both sphs a mad of conducting matial) () Th instantanous valu of cunt at a givn instant is A. Th potntial diffnc btwn P and Q at th sam instant is P i R = 3 X L = 4 Q E 8 0 b () E 0 b E 4 0 b E 0 b 5 V () 7 V 3 V 4 V Spac fo Rough Wok

4 Aakash Talnt Qust In th figu shown if R is angl of pos thn th minimum acclation of th wdg fo th block to slid is block Sampl Pap (Engining) 8. In th figu shown two cicula coils hav sam numb of tuns and cay qual cunt in sam sns. If small coil is midway btwn point P and lag coil, thn th atio of magntic fild du to small coil and lag coil at point P is < R a wdg C C P g tan( R + ) () g tan( R ) g tan R g tan 6. In th givn cicuit, th voltmt cods 5 V. Th sistanc of th voltmt (in ohm) is V V 00 () A voltmt of sistanc 80 connctd acoss a cll ads its voltag to b.4 V whil a potntiomt ads.55 V. Th intnal sistanc of cll is 0 () () An AC sis LR cicuit consists of 75 V souc of mf, total sistanc of 4 and an inductiv actanc of 48. Th cunt in cicuit is A () A.5 A.5 A 0. In th figu shown, a sph of adius m is olling without slipping on a plank. Th acclations of plank and sph a 3 m/s and 6 m/s in opposit diction spctivly, thn angula acclation of sph (in ad/s ) is 9 () a = 6 m/s m a = 3 m/s Spac fo Rough Wok

5 Sampl Pap (Engining) Aakash Talnt Qust 07 SECTIN-B : CHEMISTRY. Th quivalnt wight of CI 3 in givn quation is CI 3 + H + H C 4 + 3I 4 + H (M = Molcula wight of CI 3 ) 4. Which is most activ towads Cannizzao action? CH () M 4 M M 5 () CH Cl CH M 7. Which of th following undgo stification mo adily? 3. HCH and C H 5 H () C 3 H 7 CH and C 4 H 9 H C 6 H 5 CH and C 4 H 9 H C 6 H 5 CH and C H 5 H Th poduct (P) is B B B /h Poduct (P) () B B CN CH CH 3 5. Aang th following compound in dcasing od of activity of S N action (I) (II) H CH Cl CH Cl CH Cl (III) CN I > II > III () II > III > I III > I > II I > III > II Spac fo Rough Wok 3

6 Aakash Talnt Qust Which of th following is coct? H > R H > CH CH > NH 3 Acidic stngth Sampl Pap (Engining) 9. Th givn gaph is fo adiabatic vsibl pocss. Th coct match of gass is () (RC) > RCH > R H > R X Boiling point R I > R B > R Cl > R F Ractivity towads nuclophilic substitution All of ths P V A B C 7. Which of th following has unstabl nol fom? A H () A CH 4 B B H C CH 4 C A A CH 4 () B CH 4 B C H C H 0. Mn 4 Acidic mdium Nutal mdium Basic mdium CH C CH C CH 3 3 n-facto fo Mn 4 in acidic, nutal and basic mdium a x, y and z spctivly, thn th valu H H(l) 8. (solid) Fowad diction is favoud by High tmpatu and low pssu () Low tmpatu and low pssu High tmpatu and high pssu Low tmpatu and high pssu of x z y 0 () 4 is. Spac fo Rough Wok 4

7 Sampl Pap (Engining) Aakash Talnt Qust 07 SECTIN-C : MATHEMATICS. Consid a function dfind as x (sin x)( ), f ( x) x log( x) k, x 0 x 0 If f(x) is continuous at x = 0, thn th valu of k is () 0 3. Lt f(x) = x x 4 0 x ; x 6 b a al valud function. Thn, f'(x) fo < x < 6 is 3. x () 0 x 5 n ( k ) x ( k ) dx n 0n! is qual to k 0 0 log () log log log log 4. Th lngth of th subnomal of th cuv y = x 3 + x + x + at (, 4) is 4 () Th aa of th llips givn by th quation 3x + 4xy + 3y = is qual to sq. units () 5 5 sq. units sq. units 5 sq. units 6. Spac fo Rough Wok x x (sin x).log. dx x x quals 0 () 4 7. Consid a al valud function f(x) satisfying y x ( f xy) (( f x)) (( f y)) fo all x, y R and f = 5, thn 0 3 ifi ( ) is qual to i ( ) () (5 0 ) Th numb of al oots of th quation 6/5 3/5 x 6 x 7 0 is 0 () 3 9. Sum of last 40 cofficints in th xpansion of ( + x) 79, whn xpandd in ascnding pows of x, is 39 () C Fou ltts a slctd at andom fom th ltts of th wod SUCCESS, thn th pobability that th th ltts a sam and on is distinct is () 6 3 5

u Rsults of vaious lympiads / Scholaship Exams 579 447 85 8 8 in NS (Lvl-I) 06-07 in IM (Lvl-I) 06-07 in NTSE (Stag-I) 07 fo KVPY Fllowship Awad 06 Aakashians Slctd in NSEs 06 u Rsults of Mdical &

8 u Rsults of vaious lympiads / Scholaship Exams in NS (Lvl-I) in IM (Lvl-I) in NTSE (Stag-I) 07 fo KVPY Fllowship Awad 06 Aakashians Slctd in NSEs 06 u Rsults of Mdical & Engining Entanc Exams Classoom Distanc 37 Classoom + 8 Distanc 3376 Classoom Distanc 00 Classoom + 39 Distanc in CBSE NEET-UG 07 in AIIMS 07 in JEE (Main) 07 in JEE (Advancd) 07 Rgistd ffic: Aakash Tow, 8, Pusa Road, Nw Dlhi Ph.: (0) Fax: (0) Wbsit: atq@asl.in TLL-FREE No , All India Hlplin No SMS Aakash to 53030

GRAVITATION 4) R. max. 2 ..(1) ...(2)

GRAVITATION 4) R. max. 2 ..(1) ...(2) GAVITATION PVIOUS AMCT QUSTIONS NGINING. A body is pojctd vtically upwads fom th sufac of th ath with a vlocity qual to half th scap vlocity. If is th adius of th ath, maximum hight attaind by th body