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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
- The time period of a simple pendulum in a lift descending with constant acceleration g is
- The ratio of specific heats Cp/Cv=γ in terms of degrees of freedom (n) is given by
- Which radiations are used in tratement of muscles ache?
- The temperature of a metal block is increased from 27⁰C to 84⁰C. The rate of radiated energy
- The identical cells connected in series are needed to heat a wire of length one meter
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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