A perfectly black body emits radiation at temperature `T_(1)`K. If is to radiate at 16 times this power, its temperature `T_(2)`K should be

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

A black body emits maximum radiation of wavelength lambda_(1) at a certain temperature T_(1) . On increasing the temperature, the total energy of radiation emitted is increased 16 times at temperature T_(2) . If lambda_(2) is the wavelength corresponding to which maximum radiation is emitted at temperature T_(2) . Calculate the value of ((lambda_(1))/(lambda_(2))) .

A black body emits maximum radiation of wavelength lambda_(1) at a certain temperature T_(1) . On increasing the temperature, the total energy of radiation emitted is increased 16 times at temperature T_(2) . If lambda_(2) is the wavelength corresponding to which maximum radiation is emitted at temperature T_(2) . Calculate the value of ((lambda_(1))/(lambda_(2))) .

Power radiated by a black body at temperature T_(1) is P and it radiates maximum energy at a wavelength lambda_(1) . If the temperature of the black body is changed from T_(1) to T_(2) , itradiates maximum energy at a wavelength lambda_(1)//2 .The power radiated at T_(2) is

A black body at high temperature emits thermal radiations of

A spherical black body with radius 12 cm radiates 640 w power at 500 K. If the radius is halved and the temperature doubled, the power radiated in watts would be

A spherical black body with radius 12 cm radiates 640 w power at 500 K. If the radius is halved and the temperature doubled, the power radiated in watts would be