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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 carnot’s engine operates with source at 127° C and sink at 27°C
- C and Si both have same lattice strcture, having 4 bonding electron in each
- If λ₁ and λ₂ are the wavelengths of the first members of the Lyman and Paschen
- A uniform force of (3i + j) newton acfs on a particle of mass 2kg
- Two bodies of masses m₁ and m₂ are initially at rest at infinite distance apart
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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