The temperature at which a black body ceases to radiate energy is .

The temperature of the sun is 6000 K and is treated as a black body. The solar heat energy radiated by the sun is 10^(9)W//m^(2) . What is the temperature of a black body if it radiated heat energy of 10^(5)W//m^(2) ?

The original temperature of a black body is . 727^(@) C . The temperature at which this black body must be raised so as to double the total radiant energy, is

A black body radiates energy at the rate of 1 xx 10 J // s xx m at temperature of 227 ^(@)C , The temperature to which it must be heated so that it radiates energy at rate of 1 xx 10 J//sm , is

The rate at which a black body emits radiation at a temperature T is proportional to

Calculate temperature at perfectly black body radiates energy at the rate 5.67 xx 10^4 W/m^2 .

If the absolute temperature of a black body is doubled then Energy radiated by it in a given time intervaL will be increased by

A black body radiated maximum energy around a particular wavelength at a given temperature. If the temperature of the black body is now changed so that it radiates maximum energy around a wavelength n time the original wavelength (n lt 1) then power radiate by it will increases by a factor of:

If the temperatures of a perfectly black body measured in Kelvin is doulbed, then the energy radiated per second becomes