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A photoelectric surface is illuminated successively by monochromatic light of wavelength λ and λ/2. If the maximum kinetic energy of the emitted photoelectrons in the second case is 3 times that in the first case, the work function of the surface of the material is (h=Planck’s constant, c=speed of light)
Options
(a) 2hc/λ
(b) hc/3λ
(c) hc/2λ
(d) hc/λ
Correct Answer:
hc/2λ
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
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Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The radius of orbit of a planet is two times that of the earth. The time period
- Two capacitors having capacitances C₁ and C₂ are charged with 120V and 200V batteries
- A body is placed in an insulating container at temperature 227⁰C.
- A sphere of 4cm radius is suspended with in a hollow sphere of 6cm radius. If the inner
- ₉₂U²³⁵ undergoes successive disintegrations with the end product of ₈₂P²⁰³
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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