The Whole Amount Of Radiation Falling On The Surface Is Absorbed By The Surface

The Whole Amount Of Radiation Falling On The Surface Is Reflected By The Surface

Radiation pressure on any surface is :

On reducing the intensity of radiation falling on the surface of a material, the

A spherical ball oof surface area 20cm^(@) absorbs any radiation that falls on it. It is susoended in a closed box maintained at 57^(@)C . (a) Find the amount of radiation falling on the ball per second. (b0 Find the net rate of heat flow to or from the ball at an instant when its temperature is 200^(@)C . Stefan constant =6.0xx10^(-s)Wm^(-2)K^(-4) .

The amount of thermal radiation energy emitted from the surface of a body is found to be proportional to the ........ power of the absolute temperature of the body.

A body is in thermal equilibrium with the surrounding, then the ratio of Amount of radiations emitted and absorbed by it will be equal to ?

The sun having surface temperature Ts radiates like a black body. The rasius of sun is Rs and earth is at a distance R from the surface of sun. Earth absorbs radiations falling on its surface from sun only and is at constant temperature T. If radiations falling on earth's surface are alomost parallel and earth also radiates like a blackbody, then