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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
- In an L-C-R series resonant circuit, the capacitance is changed from C to 4C.
- A ray of light is incident on a transparent glass slab of refractive index 1.62
- A motor-cyclist drives a motor cycle in a vertical circle. His minimum velocity
- A n-p-n transistor is connected in common emitter configuration in a given amplifier.
- The oscillating frequency of a cyclotron is 10 MHz. If the radius of its Dees is o.5 m,
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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