NEET Physics: Questions 930 - 935 of 2098

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Question number: 930

» Work, Energy and Power » Elastic and Inelastic Collisions

MCQ▾

Question

Inelastic collision is the-

Choices

Choice (4) Response

a.

Collision of ideal gas molecules with the walls of the container

b.

collision of electron and positron to an annihilate each other.

c.

collision of two rigid solid spheres lying on a frictionless table

d.

scattering of a-particles with the nucleus of gold atom

Question number: 931

» Laws of Motion » Laws of Friction

MCQ▾

Question

Block A weighs 6 N and block B weighs 4 N. The coefficient of kinetic friction is 0.25 for all surfaces. find the force F to slide B at a constant speed when A is held at rest.

Choices

Choice (4) Response

a.

4N

b.

1N

c.

2N

d.

3.5N

Passage

Read the passage given below and answer the questions that follow:

In the figure shown, the system is released from rest with both the springs in unscratched positions. Mass of each block is 1 kg and force constant of each spring is 10 N/m.

Position in unscratched position

Position in Unscratched Position

In figure we show the unscratched position and mass of 1 kg constant force on it

Question number: 932 (1 of 3 Based on Passage) Show Passage

» Work, Energy and Power » Work Done

MCQ▾

Question

Maximum speed of the block placed horizontally is:

Choices

Choice (4) Response

a.

1.26 m/s

b.

3.21 m/s

c.

2.21 m/s

d.

1.93 m/s

Question number: 933 (2 of 3 Based on Passage) Show Passage

» Work, Energy and Power » Work Done

MCQ▾

Question

Extension of vertical spring in equilibrium is

Choices

Choice (4) Response

a.

0.8 m

b.

0.2 m

c.

0.6 m

d.

0.4 m

Question number: 934 (3 of 3 Based on Passage) Show Passage

» Work, Energy and Power » Work Done

MCQ▾

Question

Extension of horizontal spring in equilibrium is:

Choices

Choice (4) Response

a.

0.6 m

b.

0.8 m

c.

0.2 m

d.

0.4 m

Question number: 935

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

A bullet of mass 0.01 kg travelling at a speed of 500 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.

14 m/s

b.

1.4 m/s

c.

220 m/s

d.

110 m/s

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