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True statements among the following are
A) As the temperature increases maximum intensity of radiation emitted by the black body shifts towards lower wavelength side
B) As the intensity of incident radiation increases kinetic energy of photo electrons increases

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Neither A nor B

Only B

Only A

Both A and B

answer is A.

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Detailed Solution

By Wein's Displacement Law

$λ T = c o n s \tan t o f m a x i m u m i n t e n s i t y$

So as temperature increases wavelength decreases

$λ α \frac{1}{T} a n d n o t \frac{1}{T^{4}}$

As intensity of incident radiation increases, no. of photo electrons emitted increases but not K.E.

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