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Physics
Physics
Problem
From a solid sphere of mass
M
M
M
and radius
R
R
R
, a spherical portion of radius
R
/
2
R/2
R
/2
is removed, as shown in the figure. Taking gravitational potential
V
=
0
V = 0
V
=
0
at
r
=
∞
r = \infty
r
=
∞
, the potential at the centre of the cavity thus formed is : (
G
G
G
= gravitational constant)
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