JEE · NEET Previous Year Question

A light source of wavelength 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 , then the maximum kinetic energy of ejected electrons will be (The work function of metal is 1 eV)

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

  1. A3 ev
  2. B2 eV
  3. C6 eV
  4. D5 eV

Correct answer: D

Solution

(d) Einstein's photoelectric equation



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