0 votes
60 views
asked in HT by (215k points)

Show that the heat emitted per unit area from a black body in the hemisphere above the body surface is given by qb = $\pi I$. where I is the black body radiation emitted per unit time and solid angle subtended at the source, and per unit area of emitting surface normal to the mean direction in space.                     

 

Please log in or register to answer this question.

Welcome to Q&A discussion forum, where you can ask questions and receive answers from other members of the community.

10.4k questions

274 answers

26 comments

15.3k users

...