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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 train is moving along a straight path with uniform acceleration
- In a tangent galvanometer, a current of 0.1 A produces a deflection of 30⁰.
- For principal quantum number n=3, the possible values of orbital quantum number
- If particles are moving with same velocity, then maximum de Broglie wavelength will
- A block of 2 kg is kept on the floor. The coefficient of static friction is 0.4
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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