# NEET Physics: Questions 267 - 270 of 2142

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

## Question number: 267

MCQ▾

### Question

the magnitude of electric field intensity E is such that, when an electron placed in it, electron would experience an electrical force is equal to its weight is given by mg. So, what is the magnitude of this electric field?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 268

MCQ▾

### Question

A lady is walking on a level road at a speed of 8 km/h. Raindrops fall vertically with a speed of 6 km/h. Find the velocity of raindrops with respect to the men.

### Choices

Choice (4) Response

a.

4 km/hr

b.

3 km/hr

c.

10 km/hr

d.

7 km/hr

## Question number: 269

MCQ▾

### Question

A parallel plate capacitor is charged to a potential. difference of 50V. It is discharged through a resistance. After 1 second, the potential difference between plates becomes 40V. Then

### Choices

Choice (4) Response

a.

Potential difference between the plates after 2 seconds will be 20 V

b.

Fraction of stored energy after 1 second is 16/25

c.

Potential difference between the plates after 2 seconds will be 30V

d.

Fraction of stored energy after 1 second is 4/5

## Question number: 270

MCQ▾

### Question

An electron is moving round the nucleus of a hydrogen atom in a circular orbit of radius r. Calculate the Coulomb force F between proton and electron. (here

### Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

f Page