MHT CET Physics question
Emissivity of perfectly black body is
Answer: (C)
Solution
Emissivity is the ratio of emission to that of a perfect black body, so for a black body it is exactly 1. Hence the correct option is (c).
Emissivity of perfectly black body is
Emissivity is the ratio of emission to that of a perfect black body, so for a black body it is exactly 1. Hence the correct option is (c).