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Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV. The minimum kinetic energy of the emitted photo-electrons will be
Options
(a) 0 eV
(b) 1 eV
(c) 2 eV
(d) 10 eV
Correct Answer:
0 eV
Explanation:
Minimum kinetic energy is always zero, when the photon loses its energy by collision.
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Topics: Dual Nature of Matter and Radiation
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The potential energy of a system increases if work is done
- The excess pressure inside one soap bubble is three times that inside a second soap bubble
- The process of adding impurities to the pure semiconductor is called
- A stone falls freely under gravity.It covers distances h₁,h₂ and h₃
- A train of mass 2x 10⁵ kg has a constant speed of 20 m/s up a hill inclined
Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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