Questions
Two objects A and B have same shape and area. The Emissivity of A is 0.2 and that of B is 0.8. Each radiates same power. The ratio of their absolute temperatures is
detailed solution
Correct option is D
From the surface of a hot body, power radiated is P = eσAT4eA = 0.2, eB = 0.8,Talk to our academic expert!
Similar Questions
For a black body at temperature 727°C, its radiating power is 60W and temperature of surrounding is 227° C. If temperature of black body is changed to 1227°C, then its
radiating power will be :
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