NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 842 - 846 of 2320

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Question number: 842

» Laws of Motion » Laws of Friction

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MCQ▾

Question

The coefficient of static friction between a block of mass m and an inclined plane is n s = 0.3. What can be the maximum angle 9 of the inclined plane with the horizontal so that the block does not slip on the plane?

Choices

Choice (4)Response

a.

tan -1 (0.4)

b.

tan -1 (0.1)

c.

tan -1 (0.2)

d.

tan -1 (0.3)

Question number: 843

» Kinematics » Average Speed and Instantaneous Velocity

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Question

In the fig shown, the velocity of each particle at the end of 4 sec will be -

Two mases A and B on a pulley system

Two Mases a and B on a Pulley System

Choices

Choice (4)Response

a.

1.744 m/s

b.

0.872 m/s

c.

2.18 m/s

d.

0.218 m/s

Question number: 844

» Kinematics » Average Speed and Instantaneous Velocity

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Question

A body of mass 2 kg strikes elastically with another body at rest and continues to move in the same direction with one fourth of its initial velocity. The mass of the other body is –

Choices

Choice (4)Response

a.

4 kg

b.

2.4 kg

c.

1.2 kg

d.

0.6 kg

Question number: 845

» Laws of Motion » Laws of Friction

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MCQ▾

Question

If the coefficient of friction between an insect and bowl is u and the radius of the bowl is r, find the maximum height to which the insect can crawl in the bowl.

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 846

» Kinematics » Average Speed and Instantaneous Velocity

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Question

A bullet of mass 0.01 kg travelling at a speed of 200 m/s strikes a block of mass 2 kg, which is suspended by a string of length 5 m. The center of gravity of the block is found to rise a vertical distance of 0.1 m The speed of the bullet after it emerges from the block will be -

Choices

Choice (4)Response

a.

1.4 m/s

b.

220 m/s

c.

80 m/s

d.

20 m/s

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