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Sahay Sir > Question Answers > NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions > Physics > Chapter 29 - Dual Nature of Matter and Radiation > When a certain metallic surface is illuminated with monochromatic light of wavelength λ. The stopping potential for photoelectric current is 3V0 and when the same surface is illuminated with light of wavelength 2λ, the stopping potential is V0. The threshold wavelength of this surface for photoelectric effect is

When a certain metallic surface is illuminated with monochromatic light of wavelength λ. The stopping potential for photoelectric current is 3V0 and when the same surface is illuminated with light of wavelength 2λ, the stopping potential is V0. The threshold wavelength of this surface for photoelectric effect is

Pick the wrong answer in the context with rainbow.