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A block of iron is kept at the bottom of...

A block of iron is kept at the bottom of a bucket full of water at `2^@C`. The water exerts bouyant force on the block. If the temperature of water is increased by `1^@C` the temperature of iron block also increases by `1^@C`. The bouyant force on the block by water

A

will increases

B

will decreases

C

will not change

D

may decreases or increases depending on the values of their coefficient of expansion

Text Solution

Verified by Experts

The correct Answer is:
A
Increasing the temperature of water from `2^(@) C` to `3^(@)C` increases its density while decreases the density of iron. Hence the bouyant force increases.
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