A sphere of radius 5 cm at 1027^(@)C is suspended in a vaccum in an enclosure at 127^(@)C. Assuming the sphere to be a black body calculate the rate of loss of heat.

A sphere of radius 5 cm at 1027^(@)C is suspended in a vaccum in an en

1.	A sphere of radius 5 cm at 1027^(@)C is suspended in a vaccum in an enclosure at 127^(@)C. Assuming the sphere to be a black body calculate the rate of loss of heat.
Answer» SOLUTION :`Q= 4pir^(2)xxsigma(T^(4)-T_(0)^(4))=50118xx10^(3)` J/s