A black body emits radiation at the rate P when its temperature is T
PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
A black body emits radiation at the rate P when its temperature is T. At this temperature the wavelength at which the radiation has maximum intensity is λ0. If at another temperature T′ the power radiated is P′ and wavelength at maximum intensity is λ0/2 then
(A) P′T′=32PT
(B) P′T′=16PT
(C) P′T′=8PT
(D) P′T′=4PT