Question
The temperature of a perfect black body
is 1000k and its area
is 0.1m2 . the heat radiated by it in 1 minute in joule is
Joshi sir comment
Q/At = σT4
now solve
The temperature of a perfect black body
is 1000k and its area
is 0.1m2 . the heat radiated by it in 1 minute in joule is
Q/At = σT4
now solve