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The temperature of a body in increased f...

The temperature of a body in increased from `27^(@)C` to `127^(@)C`. By what factor would the radiation emitted by it increase?

A

`(256)/(81)`

B

`(15)/(9)`

C

`4/5`

D

`(12)/(27)`

Text Solution

Verified by Experts

The correct Answer is:
A
`EalphaT^(4)`, `T_(1)= 300K`, `T_(2)= 400K`
`therefore` `E_(2)/E_(1) = (T_(2)/T_(1))^(4) = 256/81`
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