# NEET Physics: Questions 1973 - 1977 of 2142

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## Question number: 1973

MCQ▾

### Question

What will be the acceleration due to gravity on the surface of the moon if its radius is th the radius of the earth and its mass is th the mass of the earth

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1974

Assertion-Reason▾

### Assertion (Ꭺ)

There is no effect of rotation of earth on the value of acceleration due to gravity at poles.

### Reason (Ꭱ)

Rotation of earth is about polar axis.

### Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is false but Ꭱ is true

c.

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

d.

Ꭺ is true but Ꭱ is false

## Question number: 1975

MCQ▾

### Question

At what height above the earth’s surface the acceleration due to gravity will be of its value at the earth’s surface? (Radius of earth is 6400 km)

### Choices

Choice (4) Response

a.

128 km

b.

128000 km

c.

1280 km

d.

12800 km

## Question number: 1976

MCQ▾

### Question

Three rings each of mass M and radius R are arranged as shown in the figure. The moment of inertia of the system about YY’ will be,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 1977

MCQ▾

### Question

Five particles of mass 2 kg are attached to the rim of a circular disc of radius 0.1 m & negligible mass. Moment of inertia of this system about an axis passing through the center of the disc & perpendicular to its plane is,

### Choices

Choice (4) Response

a.

0.1 kg-m 2

b.

l kg-m 2

c.

2 kg-m 2

d.

0.2 kg-m 2

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