the stopping potential is V. When the same surface is illuminated with radiation of wavelength 3λ

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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, the stopping potential is V/4 . If the threshold wavelength for the metallic surface is n lamba then value of n will be ……….
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Sep
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 V/4 . If the threshold wavelength for the metallic surface is n lamba then value of n will be ………. the stopping potential [...]
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