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Question

The amount of heat radiated per second by a body of surface area 20 cm2 kept at temperature 27oC is H and wavelength having maximum share of emission is λ, find H and λ approximately
(e = emissivity = 0.6, σ=6×106wattm2K4
Wein's constant =0.288 cmK)

A
H=58 watt, λ=0.44×103 cm
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B
H=68 watt, λ=0.96×103 cm
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C
H=58 watt, λ=0.96×103 cm
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D
H=68 watt, λ=0.44×103 cm
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