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A photosensitive metallic surface has work function, hν₀. If photons of energy 2hν₀ fall on this surface, the electrons come out with a maximum velocity of 4×10⁶m/s. When the photon energy is increased to 5hν₀, then maximum velocity of photoelectrons will be
Options
(a) 2×10⁷ m/s
(b) 2×10⁶m/s
(c) 8×10⁶m/s
(d) 8×10⁵m/s
Correct Answer:
8×10⁶m/s
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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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
- In nuclear fusion, two nuclei come together to form a large nucleus.
- A satellite A of mass m is at a distance r from the centre of earth. Another satellite
- If a nucleus ᴢXᴬ emits 9α and 5β-particles, then the ratio of total protons and neutrons
- The radius of gyration of a solid sphere of radius r about a certain axis is r
- The electric potential at a point (x,y,z) is given by V = – x²y – xz³ + 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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