Universal Law of Gravitation NEET Questions

Physics - Gravitation

Universal Law of Gravitation MCQ Questions


7.
The gravitational force between two objects is F. If the mass of each object is doubled and the distance between them is also doubled, the new force will be:
A.
F
B.
2F
C.
F/2
D.
4F
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ANSWER :
A. F
8.
The gravitational force between two point masses is 10 N. If the distance between them is halved, the force becomes:
A.
5 N
B.
20 N
C.
40 N
D.
2.5 N
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ANSWER :
C. 40 N
9.
Two spheres of masses M and 4M are placed with their centres 6R apart. A small mass m is placed on the line joining them. The gravitational force on m is zero at a distance x from the sphere of mass M. The value of x is:
A.
2R from M
B.
3R from M
C.
4R from M
D.
1R from M
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ANSWER :
A. 2R from M
10.
A satellite of mass m is orbiting Earth in a circular orbit of radius 2R. The total energy of the satellite in terms of gravitational potential energy U is:

NEET - 2024

A.
U/2
B.
U
C.
U/4
D.
U/3
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ANSWER :
C. U/4
11.
A planet has a mass 4 times that of Earth and a radius twice that of Earth. The acceleration due to gravity on the planet will be:

NEET - 2018

A.
g/4
B.
g
C.
g/2
D.
4g
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ANSWER :
B. g
12.
Newton's law of gravitation holds good for:
A.
Only terrestrial bodies
B.
Only celestial bodies
C.
Only bodies that are at rest
D.
All bodies in the universe regardless of their size, shape, or location
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ANSWER :
D. All bodies in the universe regardless of their size, shape, or location