From a solid sphere of mass \( M \) and radius \( R \), a spherical portion of radius \( \frac{R...

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From a solid sphere of mass \( M \) and radius \( R \), a spherical portion of radius \( \frac{R}{2} \) is removed, as shown in the figure.
Taking gravitational potential \( V=0 \) at \( r=\infty \), the potential \( (G= \) Gravitational constant)
[JEE (Main) 2015]
(a) \( \frac{-G M}{2 R} \)
(b) \( \frac{-G M}{R} \)
(c) \( \frac{-2 G M}{3 R} \)
(d) \( \frac{-2 G M}{R} \)
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