QuestionModern physics / photoelectric effect
A threshold frequency for photoelectric emission in copper is \(1.1\times10^{15}\) Hz. When the light of frequency \(1.2\times10^{15}\) Hz is directed on the copper surface, the maximum energy of emitted particles would be (Planck's constant is \(6.62\times10^{-34}\) J-s and the charge on the electron is \(1.6\times10^{-19}\) C)
- (a) 0·414 eV
- (b) 4·14 eV
- (c) 41·4 eV
- (d) 0·828 eV
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