# Gravitation [JEE (Based on NTA Guidelines-IIT Engg.) Advanced Physics]: Questions 1 - 3 of 5

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## Question number: 1

» Gravitation » Universal Law of Gravitation

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Appeared in Year: 2014

MCQ▾

### Question

A planet of radius has the same mass density as Earth. Scientists dig a well of depth on it and lower a wire of the same length and of linear mass density into it. If the wire is not touching anywhere, the force applied at the top of the wire by a person holding it in place is:

(take the radius of Earth and the acceleration due to gravity of Earth is )

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 2

» Gravitation » Gravitational Acceleration

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Appeared in Year: 2013

MCQ▾

### Question

Two bodies, each of mass , are kept fixed with a separation . A particle of mass is projected from the midpoint of the line joining their centers, perpendicular to the line. The gravitational constant is . The correct statement (s) is (are):

### Choices

Choice (4)Response

a.

The minimum initial velocity of the mass to escape the gravitational field of the two bodies is .

b.

The minimum initial velocity of the mass to escape the gravitational field of the two bodies is .

c.

The energy of the mass remains constant.

d.

Both a. and c. are correct

## Question number: 3

» Gravitation » Gravitational Potential

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Appeared in Year: 2011

MCQ▾

### Question

Two bodies of masses and are placed at a distance . The gravitational potential at a point on the line joining them where the gravitational field is zero is: (AIEEE)

### Choices

Choice (4)Response

a.

Zero

b.

c.

d.

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