Questions
A spherical body of emissivity e = 0.6 and area A and placed inside a perfectly black body is maintained at temperature T, then energy radiated per second will be:
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Correct option is C
E = eσ A t T4 =0.6σAT4Similar 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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