First slide

Photo Electric Effect

Question

The graph of collector plate potential versus photo electric current is shown below. If ‘I’ denotes intensity of incident radiation, then

Moderate

A

I_A>I_B>I_C
B

I_A<I_B<I_C
C

I_A=I_B=I_C
D

I_B>I_A and <I_C

Solution

The saturation photo current in all the three curves is same. Hence, intensity of all the three radiations is same.

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