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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 wire is suspended vertically from one of its ends is stretched by attaching a weight
- The kinetic energy needed to project a body of mass m from the surface of earth
- The unit of permitivity of free space, ε₀ is
- A galvanometer of resistance 50Ω is connected to a battery of 3 V along with a resistance
- A p-n photodiode is fabricated from a semiconductor with a band gap of 2.5 eV.
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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