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The temperature at which a black body ra...

The temperature at which a black body radiates at the rate of `5.67"W cm"^(-2)` is `(sigma=5.67xx10^(-8)S.I.)`:

A

100 K

B

500 K

C

1000 K

D

1500 K.

Text Solution

Verified by Experts

The correct Answer is:
C
`E=5*67"W cm"^(-2)=5*67xx10^(4)"Wm"^(-2)`
Now `E=sigmaT^(4)" "rArr" "T=((E)/(sigma))^(1//4)`
`T=((5*67xx10^(4))/(5*67xx10^(-8)))^(1//4)=1000K`.
Thus correct choice is (c ).
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