<Physics> Question about finding accelerating voltage?

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SUMMARY

The discussion centers on calculating the accelerating voltage in the Davisson-Germer experiment, specifically when observing a second-order beam at an angle of 55° using a nickel (Ni) crystal. The necessary formula involves the de Broglie wavelength and Bragg's law, which relates the angle of diffraction to the crystal spacing and the wavelength of the electrons. Participants emphasize the importance of showing work and prior attempts to facilitate better assistance.

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  • Understanding of the Davisson-Germer experiment
  • Familiarity with Bragg's law
  • Knowledge of de Broglie wavelength calculations
  • Basic principles of electron diffraction
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In the Davisson-Germer experiment using a Ni crystal, a second-order beam is observed at an angle of 55°. For what accelerating voltage does this occur?

Thanks
 
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Why didn't you use the mandatory homework help template? What have you tried so far? What do you know about the Davisson-Germer experiment that could help you answer the question?

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