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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 rod of 10 cm length is moving perpendicular to uniform magntic field of intensity
- If a mass of 20g having charge 3.0 mC moving with velocity 20ms⁻¹ enters a region
- A sound source is moving towards a stationary listener with 1/10th of the speed
- In a circuit, L,C and R are connected in series with an alternating voltage source
- A proton is moving in a uniform magnetic field B in a circular path of radius a
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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