The power emitted per unit area of a black body is R watt/`m^2`. At what wavelength will the power radiated by the black body be maximum. If the Stefan's constant is `sigma` and Wien's constant is b, then

Options

A. `lambda=((bsimga)/R)^(1//4)`
B. `lambda=(b/R)^(1//4)`
C. `lambda=((dR)/(sigma))^(1//4)`
D. `lambda=b((sigma)/R)^(1//4)`

Answer

4