Mathematics · Dual Nature of Matter and Radiation
A metal has a work function W0 = 3.3 × 10-19 J. What is the minimum threshold frequency of the incident radiation required to eject an electron from the metal surface? [Given Planck's constant h = 6.6 × 10-34 J·s]
- 15 × 1010 Hz
- 25 × 1012 Hz
- 35 × 1014 Hz✓
- 45 × 1015 Hz
Correct answer
5 × 1014 Hz
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