Gravitational Potential Energy and Gravitational Potential NEET Questions

Physics - Gravitation

Gravitational Potential Energy and Gravitational Potential MCQ Questions


7.
The change in the potential energy when a body of mass m is raised to a height nR from the Earth's surface is: (R = Radius of the Earth)
A.
mgR(n/n-1)
B.
nmgR
C.
mgR(n^2/n^2+1)
D.
mgR(n/n+1)
😑 View Answer Rough Work Error
ANSWER :
D. mgR(n/n+1)
8.
A satellite of mass 1000 kg revolves in a circular orbit around the Earth with a constant speed of 100 m/s. The total mechanical energy of the satellite is:
A.
-0.5 MJ
B.
-25 MJ
C.
-5 MJ
D.
-2.5 MJ
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ANSWER :
D. -2.5 MJ
9.
The gravitational potential energy of a body of mass m at a height h above the Earth's surface is approximately:
A.
mgh
B.
mgh/2
C.
mgh/R
D.
2mgh/R
😑 View Answer Rough Work Error
ANSWER :
A. mgh
10.
A body of mass m is taken from the Earth's surface to a height equal to twice the Earth's radius R. The change in gravitational potential energy is:

NEET - 2017

A.
2/3 mgR
B.
3mgR
C.
1/3 mgR
D.
2mgR
😑 View Answer Rough Work Error
ANSWER :
C. 1/3 mgR
11.
The gravitational potential at a point inside a uniform spherical shell is:
A.
Zero
B.
Increases with distance
C.
Decreases with distance
D.
Constant
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ANSWER :
D. Constant
12.
The gravitational potential at a distance r from a mass M is:
A.
GM/r
B.
-GM/r
C.
-GM/r^2
D.
-GM/r^2
😑 View Answer Rough Work Error
ANSWER :
B. -GM/r