# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 187 - 192 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: 187

Edit
MCQ▾

### Question

An electron is moving in a circular orbit of radius 5.3 x 10 -11 metre around the atomic nucleus at a rate of 6.6 x 1015 revolutions per second. The centripetal force acting on the electron will be -

(The mass of the electron is 9.1 x 10 - 31kg)

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 188

Edit
MCQ▾

### Question

A motor car is travelling at 50 m/s on a circular road of radius 600 m. It is increasing its speed at the rate of 4 m/s 2. Its net acceleration is (in m/s 2) –

### Choices

Choice (4)Response

a.

4.8

b.

0

c.

2

d.

5.7

## Question number: 189

Edit
MCQ▾

### Question

A particle moves in a circle of radius 20cm with a linear speed of 10m/s. The angular velocity will be –

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 190

Edit
MCQ▾

### Question

The maximum speed at which a car can turn round a curve of 40 metre radius on a level road if the coefficient of friction between the tyres and the road is 0.6, will be –

### Choices

Choice (4)Response

a.

9.0 m/s

b.

17.8 m/s

c.

10.8 m/s

d.

15.3 m/s

## Question number: 191

Edit
MCQ▾

### Question

A smooth table is placed horizontally and a spring of unstarched length 0 and force constant k has one end fixed to its center. To the other end of the spring is attached a mass m which is making n revolution per second around the center. Tension in the spring will be

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 192

Edit
MCQ▾

### Question

A car driver is negotiating a curve of radius 200 m with a speed of 15 km/hr. The angle through which he has to lean from the vertical will be –

### Choices

Choice (4)Response

a.

b.

c.

d.

Developed by: