Work, Power and EnergyHard
Question
Two spheres of the same material have radii 1 m and 4m and temperatures 4000 K and 2000 K respectively. The ratio of the energy radiated per second by the first sphere to that by the second is
Options
A.1 : 1
B.16 : 1
C.4 : 1
D.1 : 9
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