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KEAM 2014 Physics and Chemistry Paper
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© examsnet.com
Question : 49
Total: 120
Pick out the wrong statement from the following
The SI unit of universal gravitational constant is
Nm
2
Kg
−
2
The gravitational force is a conservative force
The force of attraction due to a hollow spherical shell of uniform density on a point mass inside it is zero
The centripetal acceleration of the satellite is equal to acceleration due to gravity
Gravitational potential energy =
gravitation potential
mass
of
the
body
Validate
Solution:
Option (e) is wrong statement, because
U
=
−
G
M
e
⋅
m
r
(
∵
V
=
−
G
M
r
where V = gravitational potential)
So,
U
=
gravitational potential
×
mass of the body
Therefore, the right statement is
Gravitational potential energy = gravitational potential
×
mass of the body
© examsnet.com
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