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Two identical masses of 5 kg each fall o...

Two identical masses of `5` kg each fall on a wheel from a height of `10` m . The wheel disturbs a mass of `2` kg water, the rise in temperature of water will be :-

A

`2.6^@C`

B

`1.2^@C`

C

`0.32^@C`

D

`0.12^@C`

Text Solution

Verified by Experts

The correct Answer is:
D
`2(mgh)=4.2 xx mSDeltaT`
`implies DeltaT=(2xx5xx10xx10)/(4.2xx2xx1000)=0.12^@C`
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