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Two spheres of the same material have radii 1m and 4m and temperatures 4000K and 2000K respectively.

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asked Mar 23, 2018 in Physics by paayal (26,720 points) ● 4 ● 6 ● 11

Two spheres of the same material have radii 1m and 4m and temperatures 4000K and 2000K respectively. The ratio of the energy radiated per second by the first sphere to that by the second is
(a) 1 : 1 

(b) 16 : 1 

(c) 4 : 1 

(d) 1 : 9.

1 Answer

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answered Mar 23, 2018 by sanjaydas (61,430 points) ● 5 ● 7 ● 7
selected Mar 24, 2018 by Vikash Kumar
 
Best answer

(a) : Energy radiated

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