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

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NuD = 0.023 0.8 Ren* Pr where n= 0.4 for heating h = NuD =0.023 0.8 D, (NTD, P,04 D