# NEET Physics: Questions 271 - 275 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: 271

Assertion-Reason▾

### Assertion (Ꭺ)

It is harder to open and shut the door if we apply force near the hinge.

### Reason (Ꭱ)

Torque is maximum at hinge of the door.

### Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is false but Ꭱ is true

d.

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

## Question number: 272

MCQ▾

### Question

A body of mass 2 kg is moving along x-defection with a velocity of 2 m/sec. If a force of 4 N is applied on it along y-direction for 1 sec, the final velocity of particle will be -

### Choices

Choice (4) Response

a.

2√2 m/s

b.

√2m/s

c.

1/√2 m/s

d.

1/2√2 m/s

## Question number: 273

MCQ▾

### Question

A force of () N acted on a body of mass 20 kg. The displacement after 20 sec, if it starts from rest, will be -

### Choices

Choice (4) Response

a.

100 m along with x axis

b.

200 m along with x axis

c.

500 m along with x axis

d.

Question does not provide sufficient data or is vague

## Question number: 274

MCQ▾

### Question

A particle A has charge +q and a particle B has charge +4q with each of them having the same mass m. When allowed to fall from rest through the same electric potential difference, the ratio of their speed will become

### Choices

Choice (4) Response

a.

1: 2

b.

4: 1

c.

2: 1

d.

1: 4

## Question number: 275

MCQ▾

### Question

Find the torque of a force F =- i + 2 j + 3 k acting at the point r = i + 3 j + 5k

### Choices

Choice (4) Response

a.

-21i + 3j + 5k

b.

-i - 8j + 5k

c.

14i - 38j + 16k

d.

7i - 19j + 19k

f Page