Question: 3. An electron and a photon each have a wavelength of 2.0 . What are their (a) momenta and (b) total energies? (c) Compare

3. An electron and a photon each have a wavelength of 2.0

3. An electron and a photon each have a wavelength of 2.0 . What are their (a) momenta and (b) total energies? (c) Compare the kinetic energies of the electron and the photon. 4. A nonrelativistic particle is moving three times as fast as an electron. The ratio of their de Broglie wavelengths, particle to electron, is 1.813 x 10 4. Identify the particle.

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