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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 1kg stone at the end of 1 m long string is whirled in a vertical circle at constant speed
- A beaker of radius 1.5 cm is filled with a liquid of surface tension 0.075 N/m
- A particle is executing SHM along a straight line. Its velocities at distances
- If the length of a stretched string is shortened by 4% and the tension is increased
- Two bubbles A and B (A>B) are joined through a narrow tube. Then
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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