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A block of wood is floating on water at ...

A block of wood is floating on water at `0^(@)C` with a certain volume 'V' above the water level. The temperature of water is slowly raised to `20^(@)C` . How does the volume 'V' change with the rise in temperature ?

A

remain unchanged

B

decrease continuously

C

decrease till `4^(@)C` and then increase.

D

increase till `4^(@)C` and then decrease.

Text Solution

Verified by Experts

The correct Answer is:
a
The density of water increases from `0^(@)` to `4^(@)C` and then decreases. Therefore, the volume V of the block above water level will increase till `4^(@)C` and then decrease.
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