For an ideal radiator (hohlraum) with a 10 cm diameter opening, located in black surroundings at 16?C,(a)

Question:

For an ideal radiator (hohlraum) with a 10 cm diameter opening, located in black surroundings at 16?C,(a) Calculate the net radiant heat transfer rate for hohlraum temperatures of 100?C and 560?C,(b) The wavelength at which the emission is a maximum,(c) The monochromatic emission at λmax, and(d) The wavelengths at which the monochromatic emission is 1 per cent of the maximum value.GIVENAn ideal radiator (hohlraum) in black surroundingsRadiator opening diameter (D) = 10 cm = 0.1 mSurrounding temperature (Ts) = 16?C = 289 KHohlraum temperaturesTh1 = 100?C = 373 KTh2 = 560?C = 833K