Question: When an electron is accelerated by a voltage difference, the kinetic energy acquired by the electron equals the voltage times the charge on the electron.

When an electron is accelerated by a voltage difference, the kinetic energy acquired by the electron equals the voltage times the charge on the electron. Thus, one volt imparts a kinetic energy of 1.602 × 10–19 volt-coulombs, or 1.602 × 10–19 J. What is the wavelength for electrons accelerated by 1.00 × 104 volts?

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