MCQ
The photoelectric threshold wavelength for a metal surface is $6600\ A$. The work function for this is
- A$1.87 \mathrm{~V}$
- ✓$1.87 \mathrm{eV}$
- C$18.7 \mathrm{eV}$
- D$0.18 \mathrm{eV}$
✓
Answer
Correct option: B.
$1.87 \mathrm{eV}$
$W_0=\frac{12375}{6600}=1.87 \mathrm{eV}$.
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