From the figure describing photoelectric effect we may infer corr… - Vidyadip

MCQ

From the figure describing photoelectric effect we may infer correctly that

A
$Na$ and $Al$ both have the same threshold frequency
✓
Maximum kinetic energy for both the metals depend linearly on the frequency
C
The stopping potentials are different for $Na$ and $Al$ for the same change in frequency
D
$Al$ is a better photo sensitive material than $Na$

✓

Answer

Correct option: B.

Maximum kinetic energy for both the metals depend linearly on the frequency

b
(b) Stopping potential equals to maximum kinetic energy.

Since stopping potential is varying linearly with the frequency.

There fore max. $KE$ for both the metals also vary linearly with frequency.

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