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(Solved): The width of the central bright fringe in a diffraction pattern on a screen is identical when eithe ...
The width of the central bright fringe in a diffraction pattern on a screen is identical when either electron or light (vacuum wavelength ) pass through a single slit. The distance between the screen and the slit is the same in each case and is large compared to the slit width. How fast are the electrons moving?
Expert Answer
solve this by using :The electrons' de Broglie wavelength can be used to calculate their speed , ? = h/p (1) where ? is the wavelength , h is Planck's constant and p is momentum. And momentum is p = mv (2) where m is mass of electron and v is ve...