# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1914 - 1918 of 2320

Access detailed explanations (illustrated with images and videos) to 2320 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time! View Sample Explanation or View Features.

Rs. 600.00 or

How to register?

## Question number: 1914

Edit
MCQ▾

### Question

If in an experiment for determination of velocity of sound by resonance tube method using a tuning fork of 512 Hz, first resonance was observed at 30.7 cm and second was obtained at 63.2 cm, then maximum possible error in velocity of sound is (consider actual speed of sound in air is 332 m/s)

### Choices

Choice (4)Response

a.

80 cm/sec

b.

110 cm/sec

c.

204 cm/sec

d.

58 cm/sec

## Question number: 1915

Edit
MCQ▾

### Question

In an FM system a 7 kHz signal modulates 108 MHz carrier so that frequency deviation is 50 kHz. The carrier swing is

### Choices

Choice (4)Response

a.

7.143

b.

0.71

c.

8

d.

350

## Question number: 1916

Edit
MCQ▾

### Question

If we replaced potentiometer wire by another wire having more resistivity, than potential gradient will be,

### Choices

Choice (4)Response

a.

may increase or may decrease.

b.

Decreasing

c.

Increasing

d.

Remain same

## Question number: 1917

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

A dish antenna is highly directional.

### Reason (Ꭱ)

This is because a dipole antenna is omnidirectional.

### Choices

Choice (4)Response

a.

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

b.

Both Ꭺ and Ꭱ are false

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: 1918

Edit
MCQ▾

### Question

The process of superimposing signal frequency (i. e. audio wave) on the carrier wave is known as,

### Choices

Choice (4)Response

a.

Reception

b.

Modulation

c.

Detection

d.

Transmission

Developed by: