Solving a problem in physics section 35 paragraph 70 qu

Solving a problem in physics section 35 paragraph 70 qu

70. In the analysis of the emission spectrum of atomic hydrogen by means of a diffraction grating (lattice constant d) it was found that the diffraction maximum k-th order, the observed diffraction angle φ, corresponding to one of the lines of the Balmer series. Specify the origin of the energy level of the electron transition occurred.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)