1. Which of the following is the characteristic of a black body?
Correct Answer is : A perfect radiator and a perfect absorber
2. The energy distribution is not uniform for any given temperature in a perfect black body.
3. Rayleigh-Jean’s law holds good for which of the following?
Correct Answer is : Longer wavelength
4. Wien’s displacement law holds good only for shorter wavelength.
5. Which of the following does not affect the photon?
Correct Answer is : Magnetic or electric field