Task 60001.
A parallel beam of electrons moving at the same speed falls on the face of some crystal at an angle of 60 ° to its surface. Determine the speed of electrons if they experience first-order interference reflection. The distance d between the atomic planes is 0.2 nm.
Detailed solution with a short recording of the conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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