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The energy spectrum f a black body exhib...

The energy spectrum f a black body exhibits a maximum around a wavelength `lamda_0`. The temperature of the black body is now changed such that the energy is maximum around a wavelength `3 lamda_0//4`. The power radiated by the black body will now increase by a factor of

A

`256//81`

B

`64//27`

C

`16//9`

D

`4//3`

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The correct Answer is:
a
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