NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 931 - 936 of 2142

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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: 931 (1 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: 932 (2 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: 933 (3 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: 934

» 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

Question number: 935

» Work, Energy and Power » Elastic and Inelastic Collisions

MCQ▾

Question

In an inelastic collision-

Choices

Choice (4) Response

a.

the momentum and kinetic energy are conserved

b.

neither momentum nor kinetic energy is conserved

c.

momentum is not conserved but kinetic energy is conserved

d.

Momentum is conserved but kinetic energy is not conserved

Question number: 936

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

A ball of mass m hits a wall with a speed v making an angle 6 with the normal. If the coefficient of restitution is e, the direction and magnitude of the velocity of ball after reflection from the wall will respectively be –

Choices

Choice (4) Response

a.

Equation , Equation

b.

Equation , Equation

c.

Equation , Equation

d.

Equation , Equation

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