First slide

Photo Electric Effect

Question

Photo electric effect supports quantum nature of light because

Moderate

A

There is a minimum frequency below which no photo electrons are emitted
B

The maximum KE of photo electron depend only on the frequency of light and not on its intensity
C

Even when the metal surface is faintly illuminated the photo electrons leave the surface immediately
D

All the above

Solution

All the given statements supports quantum nature of light, so correct answer is all the above

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