The stopping potential as a function of frequency of incident radiation is plotted for two different…

The stopping potential as a function of frequency of incident radiation is plotted for two different photoelectric surfaces A and B. The graph shows that the work function of A is

1. greater than that of B.
2. smaller than that of B.
3. same as that of B.
4. that no comparison can be made from the graphs.

Solution

From the given graph,
Threshold frequency $\left(v_0\right)$ of A is less than B . $\therefore \quad$ Work function $\left(h v_0\right)$ of A is smaller than that of B.

Asked in: MHT CET 2024 (15 May Shift 2)

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