From a solid sphere of mass M and radius R, a spherical portion of radius is removed, as shown in the figure. Taking
gravitational potential at , the potential at the centre of the cavity thus formed is :
(G5 gravitational constant)
As we learnt in
Potential due to Uniform solid sphere -
Radius of sphere
Mass of sphere
distance from centre of sphere
- wherein
Outside the surface
on the surface
Inside the surface
Mass of spherical portion to be removed
Potential at point P due to spehrical portion to be removed
Option 1)
This option is incorrect.
Option 2)
This option is correct.
Option 3)
This option is incorrect.
Option 4)
This option is incorrect.
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