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If the temperature of a black body is do...

If the temperature of a black body is doubled, the frequency at which the spectral intensity becomes maximum will be

A

doubled

B

halved

C

unchanged

D

quadrupled

Text Solution

Verified by Experts

The correct Answer is:
A
(i) `lamda_(m)`T = constant
`thereforeTC/v` = constant
`therefore(T_(1)C)/v_(1)=(2T_(1)C)/v_(2)`
`thereforev_(2)=2v_(1)`
(ii) `lamdaprop1/T` but `lamdaprop1/v" "thereforevpropT`
`therefore` If T is doubled, v is doubled.
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