Question
Physics Question on thermal properties of matter
A dark pattern on a China dish appears brighter than the rest of the dish, when it is strongly heated and taken to a dark room. This is an illustration of
A
Kirchhoff's radiation law
B
Stefan-Boltzmann law
C
Joule's law
D
Wien's displacement law
Answer
Kirchhoff's radiation law
Explanation
Solution
Black is a good absorber and also a good emitter