An electron is moving with a speed of 10.00 * 10^6 m/s. What is the speed of a proton that has the same de Broglie wavelength as this electron?
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An electron is moving with a speed of 10.00 * 10^6 m/s. What
is the speed of a proton that has the same de Broglie wavelength as this
electron?
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- A proton in a linear accelerator has a de Broglie wavelength of 117 pm. What is the speed of the proton? Express your answer with the appropriate units.An electron is in a box of width 3.0 * 10-10 m. What are the de Broglie wavelength and the magnitude of the momentum of the electron if it is in the n = 1 level.Light of wavelength 350 nm falls on a potassium surface, and the photoelectrons have amaximum kinetic energy of 1.3 eV.What is the work function of potassium?The speed of light is 3 × 108 m/s and Planck’sconstant is 6.63 × 10−34 J · s.Answer in units of eV. What is the threshold frequency for potassium?Answer in units of Hz.
- During a certain experiment, the de Broglie wavelength of an electron is 500 nm = 5.0 ✕ 10−7 m, which is the same as the wavelength of green light. How fast (in m/s) is the electron moving?A ball has a mass of 0.0972 kg just before itstrikes the Earth after being dropped from abuilding 22.5 m tall.What is its de Broglie wavelength? The acceleration of gravity is 9.8 m/s2and Planck’sconstant is 6.62607 × 10−34 J · s.Answer in units of m.