# Oscillations and Waves (NEET Physics): Questions 116 - 120 of 195

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## Question number: 116

» Oscillations and Waves » Simple Pendulum

MCQ▾

### Question

At any instant of time the displacement of a simple pendulum is 0.08 m and acceleration is 2 m/sec 2; the angular velocity will be:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 117

» Oscillations and Waves » Displacement Relation for a Progressive Wave

MCQ▾

### Question

The relation between time and displacement for two particles is given by

and .

The ratio of the intensities of the waves produced by the vibrations of the two particles will be

### Choices

Choice (4) Response

a.

2: 1

b.

4: 1

c.

1: 2

d.

1: 4

## Question number: 118

» Oscillations and Waves » Simple Harmonic Motion » Phase

MCQ▾

### Question

The composition of two simple harmonic motions of equal periods at right angle to each other and with a phase difference of results in the displacement of the particle along,

### Choices

Choice (4) Response

a.

Figure of 8

b.

Circle

c.

Straight line

d.

Ellipse

## Question number: 119

» Oscillations and Waves » Periodic Motion - Period Frequency

Assertion-Reason▾

### Assertion (Ꭺ)

The periodic time of a hard spring is less compared to that of a soft spring.

### Reason (Ꭱ)

The periodic time depends upon the spring - constant, and spring constant is large for hard spring.

### Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

## Question number: 120

» Oscillations and Waves » Simple Pendulum

MCQ▾

### Question

A simple pendulum is executing simple harmonic motion with a time period . If the length of the pendulum is increased by 21%, the percentage increase in the time period of the pendulum of is,

### Choices

Choice (4) Response

a.

10%

b.

21%

c.

30%

d.

50%

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