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When a metallic surface is illuminated with radiation of wavelength λ, the stopping potential is V. If the same surface is illuminating with radiation of wavelength 2λ, the stopping potential is V/4. The threshold wavelength for the metallic surface is
Options
(a) 5λ
(b) 5/2 λ
(c) 3λ
(d) 4λ
Correct Answer:
3λ
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - The wavelength of the short radio waves, microwaves, ultraviolet waves are λ₁,λ₂ and λ₃
- An electron is moving in a circular path under the influence of a transverse magnetic
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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 wavelength of the short radio waves, microwaves, ultraviolet waves are λ₁,λ₂ and λ₃
- An electron is moving in a circular path under the influence of a transverse magnetic
- A beam of electron passes undeflected through mutually perpendicular
- If doubly ionised lithium atom is hydrogen like with atomic number 3, the wavelength
- Two solid discs of radii r and 2r roll from the top of an inclined plane
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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