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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.
Related Questions: - The root mean square speed of oxygen molecule (O₂) at a certain temperature is v.
- You are marooned on a frictionless horizontal plane and cannot exert any horizontal
- A particle moves from position r₁ = 3i + 2j -6k to position r₂ = 14i + 13 j+ 9 k
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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
- The root mean square speed of oxygen molecule (O₂) at a certain temperature is v.
- You are marooned on a frictionless horizontal plane and cannot exert any horizontal
- A particle moves from position r₁ = 3i + 2j -6k to position r₂ = 14i + 13 j+ 9 k
- If the value of potential in an A.C circuit is 10 V, the peak value of potential is
- A rod of weight W is supported by two parallel knife edge A and B
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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