Near grid 1 (to the right of it, Fig. 124), as a result of the ionization of the nitrogen atom, a free electron was formed, the initial velocity of which can be taken equal to zero. Determine the maximum length R of electromagnetic waves emitted by an electron moving between grids 1 and 2, if its charge e = 1.6 10-19 k and mass m = 9.1 10-28 a. The remaining data is shown in Fig. 124. How should the potential of grid 2 be changed so that the remaining nitrogen ion begins to move between grids 1 and 3, emitting electromagnetic waves of the same maximum length H?
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