Kirchoff's law is applicable to
A)Monochromatic radiation only
B)Total radiation only
C)Both (A) and (B)
D)Only volumes and not to surfaces

Question

Quizplus · Accepted Answer

Kirchhoff's law of thermal radiation is applicable to both monochromatic (single wavelength) radiation and total radiation (the sum of all wavelengths emitted by a body). It states that for a body in thermal equilibrium, the emissivity and absorptivity are equal at every wavelength, making it relevant to both specific and total radiation scenarios.

Kirchoff's Law Is Applicable to