Which of the following statements are correct?

Options

A. A good absorber is a bad emitter
B. Every body absorbs and emits radiations at every temperature
C. The energy of radiations emitted from a black body is same for all wavelengths
D. The law showing the relation of temperatures with the wavelength of maximum emission from an ideal black body is Plank’s law

Answer

D

Explanation

Plank’s law –
`E_(lambda)d_(lambda)=(8 pi hc)/(lambda^5) xx (1)/([e^(hc//kT)-1]) d lambda`