# Oscillations and Waves (NEET Physics): Questions 45 - 49 of 195

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## Question number: 45

» Oscillations and Waves » Simple Pendulum

MCQ▾

### Question

If a simple pendulum oscillates with amplitude of 30 mm and time period of 5 sec, then its maximum velocity is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 46

» 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.

Ꭺ is false but Ꭱ is true

b.

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

c.

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

d.

Both Ꭺ and Ꭱ are false

## Question number: 47

» Oscillations and Waves » Displacement as a Function of Time

MCQ▾

### Question

The amplitude of a particle executing SHM is 5.5 cm. At the mean position the speed of the particle is 20 cm/s. The distance of the particle from the mean position at which the speed of the particle becomes , will be

### Choices

Choice (4) Response

a.

b.

c.

2 cm

d.

5.46 cm

## Question number: 48

» Oscillations and Waves » Periodic Functions

MCQ▾

### Question

A chimpanzee swinging on a swing in a sitting position, stands up suddenly, the time period will

### Choices

Choice (4) Response

a.

Remain same

b.

Decrease

c.

Become infinite

d.

Increase

## Question number: 49

» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring

MCQ▾

### Question

Three masses 700g, 500g, and 400g are suspended at the end of a spring are in equilibrium. When the 700g mass is removed, the system oscillates with a period of 3 seconds, when the 500 gm mass is also removed; it will oscillate with a period of,

### Choices

Choice (4) Response

a.

2 s

b.

s

c.

1 s

d.

3 s

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