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Class 11 NEET Physics Gravitation Questions
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© examsnet.com
Question : 38
Total: 83
A spherical planet has a mass
M
p
and diameter
D
p
.A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity, equal to
(2012)
4
G
M
p
D
p
2
G
M
p
m
D
p
2
G
M
p
D
p
2
4
G
M
p
m
D
p
2
Validate
Solution:
Gravitational force acting on particle of mass m is
F
=
G
M
p
(
D
p
2
)
2
Acceleration due to gravity experience by the particle is
g
=
F
m
=
G
M
p
(
D
p
2
)
2
=
4
G
M
p
D
p
2
© examsnet.com
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