# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 863 - 866 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: 863

Edit
MCQ▾

### Question

A uniform rod of length 4 m and mass 20 kg is lying horizontal on the ground. The work done in keeping it vertical with one of its ends touching the ground, will be –

### Choices

Choice (4)Response

a.

784 J

b.

98 J

c.

392 J

d.

196 J

## Question number: 864

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

A solid sphere and a hollow sphere of same mass M and same radius R are released from the top of a rough inclined plane. Friction coefficient is same for both the bodies. If both bodies perform imperfect rolling, then Work done by friction for the motion of bodies from top of incline to the bottom will be same for both the sides.

### Reason (Ꭱ)

Force of friction will be same for both the bodies.

### Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are false

b.

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

c.

Ꭺ is true but Ꭱ is false

d.

Ꭺ is false but Ꭱ is true

## Question number: 865

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

Maximum value of friction force between two surfaces is u x normal reaction. Where u = coefficient of friction between surfaces.

### Reason (Ꭱ)

Friction force between surfaces of two bodies is always less than or equal to externally applied force.

### 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.

Ꭺ is false but Ꭱ is true

d.

Ꭺ is true but Ꭱ is false

## Question number: 866

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

In the given figure,

### Reason (Ꭱ)

In the given figure,

### Choices

Choice (4)Response

a.

Ꭺ is true but Ꭱ is false

b.

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

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are false

Developed by: