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A nuclear fuel rod generates energy at a...

A nuclear fuel rod generates energy at a rate of `5 xx10^(8) "Watt"//m^(3)`. It is in the shape of a cylinder of radius `4.0` mm and length `0.20` m . A coolant of specific heat `4xx10^(3) J//(kg-K)` flows past it at a rate of `0.2` kg/s. The temperature rise in this coolant is approximately -

A

`2^(@)` C

B

`6^(@)` C

C

`12^(@)` C

D

`30^(@)` C

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The correct Answer is:
B
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