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24-04-2024
Physics

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hotons with an energy of 7.9 electron-volts strike a zinc plate, causing the emission of photoelectrons with a maximum kinetic energy of 4.0 electronvolts. The work function of the zinc plate is A) 11.9 eV C) 3.9 eV B) 7.9 eV D) 4.0 e

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