When radiation of wavelength \\lambda is used to illuminate a metallic surface, the stopping potential is V. When the same surface is illuminated with radiation of wavelength 3 \\lambda, thestopping potential is { {V}}/{4} . If the thresholdwavelength for the metallic surface is {n} \\lambda thenvalue of n will be ______. [2 Sep 2020 Shift 1]

JEE Mains 02-Sep-2020 Shift 1 Solved Paper

Section: Physics

Question : 25 of 75

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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, thestopping potential is

. If the thresholdwavelength for the metallic surface is nλ thenvalue of n will be ______.

[2 Sep 2020 Shift 1]

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