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A black body radiates energy at the rate...

A black body radiates energy at the rate of E `W//m` at a high temperature TK . When the temperature is reduced to `(T)/(2)K` , the radiant energy will b

A

`E//16`

B

`E//4`

C

4E

D

16E

Text Solution

Verified by Experts

The correct Answer is:
A
`E prop T^4 implies (E_1)/(E_2)= ((T)/(T//2))^2 implies E_2 = (E)/(16)`.
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