AIIMS Physics: Questions 305 - 308 of 500

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Question number: 305

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A body is thrown horizontally with a velocity 32gh from the top of a tower of height h. It strikes the level ground through the foot of the tower at a distance x from the tower. The value of x is

Choices

Choice (4) Response

a.

34m

b.

3h2

c.

h

d.

3h

Question number: 306

» Laws of Motion » Impulse

MCQ▾

Question

In below figure between two rigid walls P and Q, a block of mass 1.5kg is moving with constant velocity u=2ms , towards a spring of spring constant k=13.5Nm . The block is moving from P and strikes at the end R of the spring at distance x=80cm . If the collision between the block and wall P is perfectly elastic, the time period T (in seconds) of the motion of the block will be –

A block is moving toward a spring

A Block Is Moving Toward a Spring

In figure, a block is moving towards a spring between two rigid walls P and Q.

Choices

Choice (4) Response

a.

(3π+0.8)s

b.

(π3+0.8)s

c.

(3π+1)s

d.

(π3+1)s

Question number: 307

» Work, Energy and Power » Conservative and Non-Conservative Forces

MCQ▾

Question

A water drop of mass m=200mg is introduced between two plates with separation d=0.10mm . Calculate the force of attraction between the plates.

Choices

Choice (4) Response

a.

1.8 N

b.

2.8 N

c.

1.0 N

d.

3.2 N

Question number: 308

» Atoms and Nuclei » Radioactive Decay Law

MCQ▾

Question

A radioactive material has a half – life of 8 days. What fraction of the material would remain after 32 days –

Choices

Choice (4) Response

a.

14

b.

18

c.

116

d.

12

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