First slide

Photo Electric Effect

Question

For the graph shown, if ‘f’ denotes frequency of incident light

Moderate

A

f_A > f_B > f_C
B

f_A < f_B < f_C
C

f_A= f_B = f_C
D

f_B > f_C and f_B > f_A

Solution

The stopping potential for photo electrons is proportional to the frequency of light incident. Hence, $f_{A} > f_{B} > f_{C}$

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