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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
- Monochromatic light of wavelength 667 nm is produced by a helium neon laser
- Charge passing through a conductor of cross-section area A=0.3 m² is given
- A particle moves in a circle of radius 5 cm with constant speed and time period
- Two circuits have a mutual inductance of 0.1 H. What average e.m.f. is induced
- Diameter of the objective of a telescope is 200 cm. What is the resolving power
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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