A) Infinite
B) zero
C) \[\frac{-G{{m}_{1}}{{m}_{2}}}{{{r}^{2}}}\]
D) \[\frac{G{{m}_{1}}{{m}_{2}}}{{{r}^{2}}}\]
Correct Answer: B
Solution :
[b] Various regions of spherical shell attract the point mass inside it in various directions. These forces cancel each other completely. Therefore the gravitational force on the particle is zero.
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