Q. At a certain temperature for given wave length, the ratio of emissive power of a body to emissive power of black body in same circumstances is known as
A) Relative emissivity
B) Emissivity
C) Absorption coefficient
D) Coefficient of reflection
Explanation
The correct answer is Option B: Emissivity.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.