A hot metallic sphere of radius r radiates heat. It's rate of cooling is - VgyanHub

Question:

A hot metallic sphere of radius r radiates heat. It’s rate of cooling is

Options :

(a) independent of r
(b) proportional to r
(c) proportional to r^2
(d) proportional to 1/r

Answer :

(d) proportional to 1/r

Answer Steps :

step 1

step 2

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