A Solid Sphere at Temperature T Radiates Energy at a Rate

question 48

Multiple Choice

A solid sphere at temperature T radiates energy at a rate of R J/s.If the radius of the sphere were doubled (its temperature remains at T) ,then the rate of radiating energy would go up by a factor of

• A)stays the same
• B)2
• C)4
• D)8
• E)16

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