# Oscillations and Waves-Simple Pendulum (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 24 - 28 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.

c.

Zero

d.

## 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.

in the forward direction

b.

in the backward direction

c.

in the forward direction

d.

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

## Question number: 28

» Oscillations and Waves » Simple Pendulum

MCQ▾

### Question

A pendulum suspended from the ceiling of a train has a period T, when the train is at rest. When the train is accelerating with a uniform acceleration a, the period of oscillation will,

### Choices

Choice (4) Response

a.

Remain unaffected

b.

Decrease

c.

Become infinite

d.

Increase

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