Two spheres of the same material have radii `1m ` and `4m` and temperatures `4000K ` and `2000K ` respectively. The energy radiated per second by the first sphere is greater than that by the second.

Explanation

Energy radiated per second `propAT^(4)prop(R^(2))T^(4)`
`(E_(1))/(E_(2))=((1)/(4))^(2)((4000)/(2000))^(4)=1orE_(1)=E_(2)`