Oscillations and Waves-Simple Pendulum (NEET Physics): Questions 24 - 27 of 28

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Question number: 24

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

The length of a simple pendulum is increased by 1%. Its time period will

Choices

Choice (4) Response

a.

Increase by 2%

b.

Increase by 0.5%

c.

Decrease by 0.5%

d.

Increase by 1%

Question number: 25

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

A simple pendulum consisting of a ball of mass m tied to a thread of length l is made to swing on a circular arc of angle θ in a vertical plane. At the end of this arc, another ball of mass m is placed at rest. The momentum transferred to this ball at rest by the swinging ball is

Choices

Choice (4) Response

a.

1

b.

lg

c.

Zero

d.

mgl

Question number: 26

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

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.

tan1(ga) in the forward direction

b.

tan1(ag) in the backward direction

c.

tan1(ag) in the forward direction

d.

tan1(ga) in the backward direction

Question number: 27

» Oscillations and Waves » Simple Pendulum

MCQ▾

Question

The length of a second’s pendulum is 7 m. The spherical bob which is empty from inside has a mass of 150 gm. This is now replaced by another solid bob of same radius but having different mass of 100 gm. The new time period will be

Choices

Choice (4) Response

a.

4.43 sec

b.

2.38 sec

c.

5.30 sec

d.

4 sec

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