MCQ
If threshold wavelength for sodium is 6800Å then the work function will be
- ✓1.8 eV
- B2.5 eV
- C2.1 eV
- D1.4 eV
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[Given: In SI units $\frac{1}{4 \pi \in_0}=9 \times 10^9, \ln 2=0.7$. Ignore the area pierced by the wire.]
