A hollow spherical shell is compressed to half its radius, the gravitational potential at the centre.

Increases

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Decreases

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Remains same

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During the compression increases then returns at the previous value

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Solution

The correct option is A Increases
As the shell is compressed to half its radius the mass will still remain same. The new potential energy will be $\frac{- 2 G M}{R}$ and thus the gravitational potential energy art the centre Increases.

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