Question

difference between black and grey body radiation?

Answer 1

Answer:

black body is an object that absorbs all the radiant energy reaching its surface with all the wavelengths. WHILE A gray body is defined as a body whose absorption does not change with variation in temperature & wavelength of the incident radiation.

Answer 2

Black-body radiation has a characteristic, continuous frequency spectrum that depends only on the body's temperature, called the Planck spectrum or Planck's law.