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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 particle doing SHM has amplitude=4 cm and time period = 12 sec. The ratio between times
- The potential energy of a system increases if work is done
- In old age arteries carrying blood in the human body become narrow resulting
- Three unequal resistors in parallel are equivalent to a resistance 1 Ω.
- The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
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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