# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 82 - 86 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?

## Passage

The internal radius of a 1 m long resonance tube is measured as 3 cm. A tuning fork of frequency 3500Hz is used. The first resonating length is measured as 14.6 cm and the second resonating length is measured as 24.0 cm.

## Question number: 82 (1 of 2 Based on Passage) Show Passage

Edit
MCQ▾

### Question

Calculate the speed of sound at the room temperature

### Choices

Choice (4)Response

a.

276 m/s

b.

675 m/s

c.

658 m/s

d.

930 m/s

## Question number: 83 (2 of 2 Based on Passage) Show Passage

Edit
MCQ▾

### Question

Calculate the end correction.

### Choices

Choice (4)Response

a.

9.2 cm

b.

9.1 cm

c.

9.4 cm

d.

9.9 cm

## Question number: 84

Edit
MCQ▾

### Question

The position of a particle moving in the xy-plane at any time t is given by x = (4t 2 - 8t) metres, y = (5t 2 - 10t) metres. Select the correct statement about the moving particle from the following

### Choices

Choice (4)Response

a.

The velocity of the particle is zero at t = 0 second

b.

The velocity and acceleration of the particle are never zero

c.

The acceleration of the particle is zero at t = 0 second

d.

The velocity of the particle is zero at t = 1 second

## Question number: 85

Edit
MCQ▾

### Question

A car accelerates from rest at a constant rate for some time, after which it decelerates at a constant rate β and comes to rest. If the total time elapsed is t, then the maximum velocity acquired by the car is

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 86

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

Number of significant figures in 0.005 is one and that in 0.500 is three.

### Reason (Ꭱ)

This is because zero is not significant.

### Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

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

d.

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

Developed by: