MCQ
Work function of a metal is 2.51 eV. Its threshold frequency is
- A$5.9 \times 10^{14}$ cycle$/\mathrm{sec}$
- B$6.5 \times 10^{14}$ cycle$/\mathrm{sec}$
- C$9.4 \times 10^{14}$ cycle$/\mathrm{sec}$
- ✓$6.08 \times 10^{14}$ cycle$/\mathrm{sec}$
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