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    Two Problems in Modern Physics

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    1;A cathode plate is heated up to 300±C. What is the de Broglie wavelength of electrons it emits?
    2.Show that the laws of energy and momentum conservation forbid the complete absorption of a photon by a free proton.

    © BrainMass Inc. brainmass.com October 4, 2022, 12:27 pm ad1c9bdddf
    https://brainmass.com/physics/photons/two-problems-modern-physics-457990

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    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    © BrainMass Inc. brainmass.com October 4, 2022, 12:27 pm ad1c9bdddf>
    https://brainmass.com/physics/photons/two-problems-modern-physics-457990

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