The surface of the metal is illuminated with the light of 400 nm. The kientic energy of…
Physics · JEE Main · NTA Exams — Atoms and Nuclei
The surface of the metal is illuminated with the light of 400 nm. The kientic energy of the ejected photoelectrons was found to be 1.68 eV. The work function of the metal is (hc = 1240 eV–nm)
- 3.09 eV
- 1.42 eV
- 1.51 eV
- 1.68 eV
Answer
(B) 1.42 eV
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