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

At what temperature, a perfectly black body would radiate energy at a rate of 90.72xx10^(4)W//m^(2) ?

A black body at 127^(@)C emits the energy at the rate of 10^(6)J//m^(2) s the temperature of a black body at which the rate of energy emission is 16 xx 10^(6)J//m^(2)s is .

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

The energy spectrum f a black body exhibits a maximum around a wavelength lamda_0 . The temperature of the black body is now changed such that the energy is maximum around a wavelength 3 lamda_0//4 . The power radiated by the black body will now increase by a factor of

The energy emitted per second by a black body at 27^(@)C is 10 J. If the temperature of the black body is increased to 327^(@)C , the energy emitted per second will be