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AIIMS (All India Institute of Medical Sciences) Physics: Questions 250 - 255 of 500

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Question 250

Question

MCQ▾

The pressure required to reduce the volume of a rubber ball by is –

.

Choices

Choice (4)Response

a.

b.

c.

d.

Question 251

Question

MCQ▾

A bike can be stopped by brakes after at least 10 m, when it moving with a speed of . If the same bike is moving with , the minimum stopping distance is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 252

Question

MCQ▾

If the equation for the displacement of a particle moving on a circular path is given by , where is in radians and t in seconds, then the angular velocity of the particle after 3 s from its start is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 253

Question

MCQ▾

Magnetic permeability is minimum for –

Choices

Choice (4)Response

a.

Diamagnetic substance

b.

Ferromagnetic substance

c.

Paramagnetic substance

d.

Question does not provide sufficient data or is vague

Question 254

Question

MCQ▾

Force between two identical bar magnets whose centers are meter apart is 5.4 N when their axes are in same line. If separation is increased to , the force between them is reduced to:

Choices

Choice (4)Response

a.

1.2 N

b.

0.6 N

c.

0.3 N

d.

2.4 N

Question 255

Question

MCQ▾

A radioactive material has a half – life of 8 days. What fraction of the material would remain after 48 days –

Choices

Choice (4)Response

a.

0.0156

b.

0.0625

c.

0.156

d.

0.625

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