A body can have a temperature -10 K.

A black body is at a temperature 300 K . It emits energy at a rate, which is proportional to

A body having a temperature of 27^@C is kept in a room having a temperature of 27^@C . Does the body emit any radiation in this case when the room temperature is the same as body temperature ?

The ratio of the wavelengths of emission corresponding to the maximum emission in the spectrum of a black body heated to temperatures 1000K and 2000K respectively is

A black body is at temperature of 500 K . It emits energy at rate which is proportional to

A body cools from a temperature 3 T to 2 T in 10 minutes. The room temperature is T . Assume that Newton's law of cooling is applicable. The temperature of the body at the end of next 10 minutes will be

A certain ideal gas has a temperature 300 K and a pressure 5.0 xx 10^4 Pa. The molecules have a mean free path of 4.0 xx 10^(-7) m. If the temperature is raised to 350 K and the pressure is reduced to 1.0 xx 10^4 Pa the mean free path is then

Calculate the value of lamda_("max") for radiation from a body having surface temperature 3000 K.