An electron and proton are separated by a large distance. The electron starts approaching the pr....

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An electron and proton are separated by a large distance. The electron starts approaching the proton with energy \(3 eV\). The proton captures the electron and forms a hydrogen atom in second excited state. The resulting photon is incident on a photosensitive metal of threshold wavelength  4000 Ao. What is the maximum kinetic energy of the emitted photoelectron? šŸ“²PW App Link - https://bit.ly/YTAI_PWAP šŸŒPW Website - https://www.pw.live



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