The power radiated by a black body is P and it radiates maximum energy at wavelength λ0. If the temperature of the black body is now changed so that it radiates maximum energy at wavelength 3/4λ0, the power radiated by it becomes nP. The value of n is :-
(1) 3/4
(2) 4/3
(3) 256/81
(4) 81/256
