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JEE Main Physics Class 12 Dual Nature of Matter and Radiation Part 1 Questions

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Question : 43

Total: 100

When radiation of wavelength λ is used to illuminate a metallic surface, the stopping potential is V. When the same surface is illuminated with radiation of wavelength 3λ , the stopping potential is .

. If the theshold wavelength for the metallic surface is nl then value of nλ will be _________.

[NA Sep. 02, 2020 (I)]

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