MCQ
Threshold wavelength for photoelectric effect on sodium is $5000 \mathring A.$ Its work function is
- A$15\ J$
- B$16 \times 10^{-14}\ J$
- ✓$4 \times 10^{-19}\ J$
- D$4 \times 10^{-81}\ J$
✓
Answer
Correct option: C.
$4 \times 10^{-19}\ J$
$4 \times 10^{-81}\ J$
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