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 black body of mass 34.38 gm and surface area 19.2" cm"^(2) is at an

1.	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
Answer» 2800 2100 1400 1200 Answer :C