The width of the central bright fringe in a diffraction pattern on a screen is identical when either electrons or blue light (vacuum wavelength = 465 nm) 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?
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- 1. Leo Tolstoy says that when he started to study the meaning of life he found that “force was force, matter was matter, will was will, infinity was