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When a metallic surface is illuminated with radiation of wavelength λ, the stopping potential is V. If the same surface is illuminating with radiation of wavelength 2λ, the stopping potential is V/4. The threshold wavelength for the metallic surface is
Options
(a) 5λ
(b) 5/2 λ
(c) 3λ
(d) 4λ
Correct Answer:
3λ
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - Which of the following parameters does not characterize the thermodynamic state
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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
- Which of the following parameters does not characterize the thermodynamic state
- The shortest wavelength in Lyman series is 91.2 nm. The largest wavelength
- Two charged particles have charges and masses in the ratio 2:3 and 1:4 respectively.
- A certain mass of Hydrogen is changed to Helium by the process of fusion
- The ionisation potential of hydrogen-atom is -13.6 eV. An electron in the groundstate
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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