1) Calculate the wavelength of an electron in a TEM at 300 kV acceleration voltage (Consider the two cases with and without relativistic effects)
Q: a) What is the maximum kinetic energy and speed of an electron ejected from a Na surface, in a…
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Q: Calculate the de Broglie wavelengths of the following objects and discuss the relevance of quantum…
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Q: The de-Broglie wavelength of a proton (charge = 1.6 x 10-19c, m=1.6 × 10-27 kg) accelerated through…
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Q: A strip of gold with a work function of 5.1eV is illuminated by a 1.57 μm green light. Calculate the…
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Q: An electron is trapped in an infinitely deep one dimensional well of width 0.285 nm. Initially, the…
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A: Given: The work function of the platinum is 1.02x10-18 J. The wavelength of the light is 100 nm.
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- II) What is the maximum kinetic energy of electronsejected from barium(Wo = 2.48eV) when illuminated bywhite light,λ =400 to 750 nm?PLEASE BE CLEAR AND ACCURATE IN YOU RESPOND, THANKS.Light of 450-nm wavelength strikes a metal surface, and astream of electrons emerges from the metal. If light of thesame intensity but of wavelength 400 nm strikes the surface, are more electrons emitted? Does the energy of theemitted electrons change? Explain.
- Learning Goal: To understand de Broglie waves and the calculation of wave properties. In 1924, Louis de Broglie postulated that particles such as electrons and protons might exhibit wavelike properties. His thinking was guided by the notion that light has both wave and particle characteristics, so he postulated that particles such as electrons and protons would obey the same wavelength-momentum relation as that obeyed by light: \ =h/p, where X is the wavelength, p the momentum, and h Planck's constant. X = 1.06×10-34 Submit Correct m Previous Answers -14 As a comparison, an atomic nucleus has a diameter of around 10 m. Clearly, the wavelength of a moving baseball is too small for you to hope to see diffraction or interference effects during a baseball game. Part C Consider a beam of electrons in a vacuum, passing through a very narrow slit of width 2.00 μm. The electrons then head toward an array of detectors a distance 0.9540 m away. These detectors indicate a diffraction pattern,…An electromagnetic beam with wavelength do is incident upon an unknown metal. If electrons are ejected with maximum kinetic energy K, what is the work function of the metal? No a) hc/λo b) hλo/c c) hc/20-K d) hλo/c-K3) Determine the energy of a photon emitted when an electron relaxes from the excited state ν=4 to ground state ν=1 of a harmonic oscillator if the force constant κ is 285 N m–1.