A heated body emits radiation which has maximum intensity at frequency `v_m` If the temperature of the body is doubled:

Options

A. the maximum intensity radiation will be at frequency `2v_m`
B. the maximum intensity radiation will be at frequency `(1//2)v_m`
C. the total emitted energy will increae by a factor of 16
D. the total emitted energy will increase by a factor of 2

Answer

A, C

Explanation

Accoding to Wien's law
`lamda_mT=constant`
or `(T)/(v_m)=constant`
So, if T is doubled `v_m` is also doubled Further, according to Stefan's law,
`EpropT^4`
When T is doubled, E increases by a factor of 16.