# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1776 - 1780 of 2320

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## Question number: 1776

Edit
MCQ▾

### Question

The equation of a progressive wave is given by where x and y are in meter and t is in second. The velocity of the wave is,

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 1777

Edit
MCQ▾

### Question

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

,

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

### Choices

Choice (4)Response

a.

9: 1

b.

1: 9

c.

2: 1

d.

1: 2

## Question number: 1778

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

Sound from a tuning fork is louder when its stem is placed on a desktop

### Reason (Ꭱ)

When a wave reaches another denser medium some part of it is reflected.

### Choices

Choice (4)Response

a.

Ꭺ is true but Ꭱ is false

b.

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

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

## Question number: 1779

Edit
MCQ▾

### Question

A wave of frequency 500 Hz has velocity 360 m/sec. The distance between two nearest points 60° out of phase, is

### Choices

Choice (4)Response

a.

120 cm

b.

12 cm

c.

0.6 cm

d.

60 cm

## Question number: 1780

Edit
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 sec

b.

5.30 sec

c.

2.38 sec

d.

4.43 sec

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