class 11 test-2 for iit jee

8/10/2019 Class 11 Test-2 for IIT JEE

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PHYSICS Mechanics Test-2 Class - XI

Time : 1 Hr. Marks : 100

Q. No. 1 to 18 have single option correct and Q. No. 19 to 25 have single digit ansers.

Mark the correct option in Answer Sheetonl!.

"orrect options carr! #$ marks each and %ero mark &or no attempt.

'rong options &or Q. No. 1 to 18 carr! ( 2 marks each and no negative mark &or Q. No. 19 to 25.

Take g ) 10 m*s

2

.SINGLE OPTION CORRECT TYPE

Qesti!n N!-" t! #$

To cars + , - are approaching ith constant velocities toards a /nction o& to roads &rom m/t/all!

perpendic/lar directions. +t t ) 0 + is at 10 m and - is at 10 m &rom the /nction. 3& the speeds o& + , -

are 1 m*s and 12 m*s respectivel! then:

1. Minim/m distance 4eteen cars is:a. $0 m 4. 50 m c. 2.5 m d. 8. m

2. Time at hich the! are nearest to each other is:a. 8.1 s 4. 10 s c. 1. s d. 15 s

. distance o& - &rom the /nction hen 4oth cars are nearest to each other is:a. 0 m 4. $0 m c. 2.5 m d. 8. m

Qesti!n N!-% t! &$

+ particle moves along a straight line as per the given vt graph then:

$. 6inal displacement o& the particle &rom the starting point is:a. 75 m

4. $5 m

c. 15 md. 0

5. The maim/m val/e o& magnit/de o& acceleration is:a. 10 m*s2

4. 15 m*s2

c. 20 m*s2

d. 0 m*s2

. Total distance traveled 4! the particle is:a. 75 m 4. $5 m c. 15 m d. 0

Qesti!n N!-' t! ($To masses 2 kg and 5 kg are tied to a massless rope hich is hanging over a massless smooth p/lle!. The

p/lle! is p/lled verticall! /pards ith a &orce o& 80 N then:

7. pard acceleration o& p/lle! is:a. $ m*s2

4. 11.$ m*s2

c. 1.$ m*s2

d. 0

8. /pard acceleration o& 2 kg 4lock is:a. 1.$ m*s2

4. 10 m*s2c. 11.$ m*s2d. $0 m*s2

Qesti!n N!-) t! ""$

The to 4locks connected thro/gh ideal string and springs are in e/ili4ri/m. 3& m 1) 20 kg m2) 10 kg k1) 1000 N*m k2) 2000 N*m then:

9. Tension in k2is:a. 100 N

4. 200 N

c. 00 Nd. 0

10. ;longations o& k1and k2are:a. 10 cm 10 cm

4. 20 cm 5 cm

c. 20 cm 0d. 10 cm 0

11. 3& the string connecting k2to m2is c/t the acceleration o& m1and m2immediatel! a&ter

c/t are:

S.K.Dokania, 2A / 38 / 5, Bhilai, 0788 2276697, 0788 2858015, 094079 81575


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a. 10 m*s2 10 m*s2

4. .7 m*s2 .7 m*s2

c. 10 m*s2 0d. 0 10 m*s2

Qesti!n N!-"2 t! "%$

To 4locks o& masses 10 kg and 25 kg are kept on a smooth &loor as shon in the &ig/re. 6riction eists

onl! 4eteen to 4locks and the coe&&icient is 0.5. + &orce o& $0 N is applied on 10 kg 4lock then:

in N? to 4e applied on the 4lock to move it@

22. + particle is proected ith a velocit! o& 20 m*s at angle 0 oa4ove hori%ontal. +t an instant hen

the velocit! o& the particle makes angle $5o

ith hori%ontal the radi/s o& c/rvat/re o& its traector!is 10n m. 6ind n.

Qesti!n N!-2# t! 2*$

Three smooth mova4le p/lle!s + - , " o& mass m each are hanging thro/gh a string as

shon in the &ig/re then:

2. 3& acceleration o& p/lle! + is g*4 donards &ind 4.

2$. 3& acceleration o& p/lle! " is 2g*c /pards &ind c.

25. 3& tension in the string is $mg*n &ind n.

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class 11 test-2 for iit jee

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