Q. There is a black spot on a body. If the body is heated and carried in dark room then it glows more. This can be explained on the basis of
A) Newton’s law of cooling
B) Wien’s law
C) Kirchhoff’s law
D) Stefan’s
Explanation
(c) According to Kirchhoff’s law, a good emitter is also a good absorber
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.