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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
(150)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If potential(in volts) in a region is expressed as V(x,y,z) = 6xy – y + 2yz,
- Ratio of the radii of the nuclei with mass numbers 8 and 27 would be
- A uniform chain of length L and mass m is kept on a smooth table. It is released
- Alternating current is transmitted to distant places at
- Two conducting spheres of radii 5 cm and 10 cm are given a charge of 15 μC each.
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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