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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
- A ball is dropped from the root of a tower of height h
- Pure Si at 300 k has equal electrons (nₑ) and hole (nh) concentrations
- The work function for aluminium is 4.125 eV. The cutoff wavelength for photoelectric
- In an LCR circuit, capacitance is changed from C to 2C. For the resonant frequency
- The ratio of volumes of nuclei (assumed to be in spherical shape) with respective
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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