A hollow sphere is held suspended. Sand is now poured into it in stages. The centre of gravity of the sphere with the sand
A
Rises continuously
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B
Remains unchanged in the process
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C
First rises and then falls to the original position
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D
First falls and then rises to the original position
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Solution
The correct option is C First falls and then rises to the original position Initially centre of gravity is at the centre. When sand is poured it will fall and again after a limit, centre of gravity will rise.