JEE Mains · Physics · STD 12 - 11. Dual nature of radiation and matter
A light source of wavelength \(\lambda\) illuminates a metal surface and electrons are ejected with maximum kinetic energy of 2 eV . If the same surface is illuminated by a light source of wavelength \(\frac{\lambda}{2}\), then the maximum kinetic energy of ejected electrons will be (The work function of metal is 1 eV )
- A 3 eV
- B 2 eV
- C 6 eV
- D 5 eV
Answer & Solution
Correct Answer
(D) 5 eV
Step-by-step Solution
Detailed explanation
Einstein's photoelectric equation…
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