In a photoelectric effect experiment, monochromatic light of wavelength 400 nm falls on a metal surface with work function . What is the maximum kinetic energy of ejected photoelectrons? ()
Answer and explanation
Correct answer: B. 0,90 eV
- Step 1: Photon energy: eV. Step 2. Einstein's photoelectric equation: eV. Answer: 0,90 eV. Why not the others: Kinetic energy is photon energy minus work function: eV.
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