An indirectly heated filament is radiating maximum energy of wavelength `2.16xx10^-5cm`. Find the
Channel: Doubtnut
Date: 2020-07-26

An indirectly heated filament is radiating maximum energy of wavelength `2.16xx10^-5cm`. Find the net amount of heat energy lost per second per unit area, the temperature of the surrounding air is `13^@C`. Given `b=0.288cm-K.sigma=5.77xx10^-5erg//s-cm^(2)-K^(4)`).