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A certain metallic surface is illuminated with monochromatic light of wavelength λ. The stopping potential for photoelectric current for this light is 3V₀. If the same surface is illuminated with light of wavelength 2λ, the stopping potential is V₀. The threshold wavelength for this surface for photoelectric effect is
Options
(a) 6λ
(b) 4λ
(c) λ/4
(d) λ/6
Correct Answer:
4λ
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 oscillating frequency of a cyclotron is 10 MHz. If the radius of its Dees is o.5 m,
- The rest energy of an electron is
- The magnetic susceptibility does not depend upon the temperature in
- The moon’s radius is 1/ 4 that of the earth and its mass is 1 / 80 times that of the earth
- A photon of energy 10.2 eV collide inelastically with hydrogen atom in ground state
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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