From the cathode tube to the diaphragm with two parallel, coplanar narrow slits spaced 50 microns, normally incident parallel beam of monoenergetic electrons. Identify the anode voltage U tube, if it is known that the distance between the center and the first maximum of the diffraction pattern on the screen located at a distance of 100 cm from the slits is 4.9 microns.

Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
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