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A black body of mass 34.38 gm and surfac...

A black body of mass 34.38 gm and surface area `19.2" cm"^(2)` is at an initial temperature of 400K. It is allowed to cool inside an evacuated enclosure kept at constant temperature 300K. The rate of cooling is `0.04^(0)C` per second. The specific heat of the body in J `kg^(-1)K^(-1)` is approximately

A

2800

B

2100

C

1400

D

1200

Text Solution

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The correct Answer is:
C
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