A metallic surface is illuminated with radiation of wavelength λ, the stopping potential is V0. If the same surface is illuminated with radiation of wavelength 2λ, the stopping potential becomes 4V0. The threshold wavelength for this metallic surface will be
Held on 11 Apr 2023 · Verified 6 Jul 2026.
3λ
4λ
23λ
4λ
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