(a) A photoelectric experiment is performed where green light with a wavelength of 546.1 nm is shined on a metal plate, creating a photocurrent from it to a collector plate. When the potential difference between the metal plate and the collector is increased to a magnitude of 0.686 V, the photocurrent goes to zero—in other words, this is the stopping potential. What is the work function (in eV) for this metal? answer in eV (b) The experiment is performed again with the same metal, but now red light with a wavelength 650.0 nm is shined on it. What is the new stopping potential (in V) in this case? answer in V

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Compton effect

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The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.