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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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- Dependence of intensity of gravitational field (E) of earth with distance(r)
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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 alternating source of primary coil on transformer is replaced by a Laclanche cell
- Dependence of intensity of gravitational field (E) of earth with distance(r)
- When photons of energy hν fall on an aluminium plate (of work function E₀),
- Two cells, having the same e.m.f. are connected in series through an external resistance
- If in a L-R series circuit the power factor is 1/2 and R=100Ω, then the value of L is,
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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