Oscillations and Waves [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 14 - 16 of 429

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Question 14

Question MCQ▾

Two blocks A and B each of mass m are connected by a massless spring of natural length L and spring constant k. The blocks are initially resting on a smooth horizontal floor with the spring at its natural length. A third identical block C also of mass m moves on the floor with a speed v along the line joining A and B and collides with A. Then

(1) The kinetic energy of the A - B system at maximum compression of the spring is

(2) The maximum compression of the spring is

(3) The kinetic energy of the A – B system at maximum compression of the spring is zero.

(4) The maximum compression of the spring is

Select the correct answers and mark it according to the following codes:

Choices

Choice (4)Response

a.

1 and 3 are correct

b.

1,2 and 3 are correct

c.

1 and 2 are correct

d.

2 and 4 are correct

Edit

Question 15

Question MCQ▾

If a simple pendulum oscillates with an amplitude of 50 mm and time period of 2 sec, then its maximum velocity is,

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 16

Question MCQ▾

A simple pendulum is set up in a trolley which moves to the right with an acceleration a on a horizontal plane. Then the thread of the pendulum in the mean position makes an angle θ with the vertical is

Choices

Choice (4)Response

a.

in the forward direction

b.

in the forward direction

c.

in the backward direction

d.

in the backward direction

Edit