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Q.
The force of attraction due to a hollow spherical shell of mass $M$, radius $R$ and uniform density, on a point mass $m$ situated inside it is
Gravitation
Solution:
Net resultant force at point $P$ inside a hollow spherical shell will be zero because the attractive forces due to various parts of the shell cancel out each other.
i.e. $\mid F _{P} \text { (net) } \mid=$ zero
