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A cork ball is floating on the surface o...

A cork ball is floating on the surface of water in a beaker. The beaker is covered with a bell jar and the air is evacuated. What will happen to the ball?

A

Sinks a little

B

Rise a little

C

Remain unchanged

D

Sink completely

Text Solution

Verified by Experts

The correct Answer is:
A
Here, upthrust due to which air will be replaced by water vapours. As water vapours are lighter than air, hence upthrust decreases. So, the ball sinks a little.
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