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A body placed inside a hollow metal sphere is shielded from the gravity of outside masses:
AOnly if the sphere is earthed
BOnly if the shell is thick
CNot at all, by any shell
DFully, like electric shielding
Answer & Solution
Correct answer: C. Not at all, by any shell
Unlike electric fields, gravitational attraction cannot be blocked by any shell, so gravitational shielding is not possible.
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