A spherical body of area A and emissivity `e=0.6` is kept inside a perfectly black body. Total heat radiated by the body at temperature T

A spherical body of area A, and emissivity e = 0.6 is kept inside a black body. What is the rate at which energy is radiated per second at temperature T

Emissive power of a perfectly black body

Emissive power of a perfectly black body

what is emissivity of a perfectly black body ?

A spherical body of emissivity e, placed inside a perfectly black body (emissivity = 1) is maintained at absolute temperature T. The energy radiated by a unit area of the body per second will be ( sigma is Stefan's constant)

A body with surface area (A), temperature (T) and emissivity (e) = 0.6 is kept inside a spherical black body. What will be the maximum energy radiated ? [ sigma is Stefan's constant]

For perfectly black body emissivity (e) is

For perfectly black body emissivity (e) is