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When a piece of metal is illuminated by a monochromatic light of wavelength λ, then stopping potential is 3Vs. When same surface is illuminated by light of wavelength 2λ, then stopping potential becomes Vs. The value of threshold wavelength for photoelectric emission will be
Options
(a) (4λ)/3
(b) 6λ
(c) 4λ
(d) 8λ
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
- A ball is projected upwards from the foot of a tower. The ball crosses the top
- The cylindrical tube of a spray pump has radius R, one end of which has n fine holes,
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- Cathode rays are produced when the pressure is of the order of
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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
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