MHT CET Physics question

Physics Thermal Properties of Matter MHT CET

Black body is defined as the body

(A)which absorbs all the radiation of any wavelength falling on itCorrect
(B)which does not absorb any radiation
(C)which absorbs radiation in ultraviolet region
(D)which absorbs radiation in infra–red region

Answer: (A)

Solution

A black body absorbs all radiation of every wavelength falling on it, not just in a certain region. Hence the correct option is (a).

Question ID VK-062911