A black sphere has radius 'R' whose rate of radiation is 'E' R at temperature 'T". If radius is madeR/3 and temperature '3T the rate of radiation will be - VgyanHub

Question:

A black sphere has radius ‘R’ whose rate of radiation is ‘E’ R at temperature ‘T”. If radius is madeR/3 and temperature ‘3T the rate of radiation will be

Options :

(a) E
(b) 16 E
(c) 9 E
(d) 3 E

Answer :

(c) 9 E

Answer Steps :

step 1

step 2

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