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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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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The equation of state for 5 g of oxygen at a pressure P and temperature T,
- By sucking through a straw, a student can reduce the pressure of his lungs
- A particle moves a distance x in time t according to equation x = (t + 5)⁻¹
- If two electric bulbs have 40 W and 60 W ratings at 220 V, then the ratio
- A particle of mass 100 g is thrown vertically upwards with a speed of 5 m/s. The work
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Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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