A photon of wavelength 663 nm is incident on a metal surface. The work function of the…

Physics · Class 12 · CBSE — Dual Nature of Radiation & Matter

1. 3.0 \(\times\) 10^-20 J
2. 6.0 \(\times\) 10^-20 J
3. 4.5 \(\times\) 10^-20 J
4. 9.0 \(\times\) 10^-20 J

Answer

(C) 4.5 10 -20 J

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