6.Calculate the wavelength of the light emitted by a hydrogen atom during a transition of its electron from the n = 4 to the n = 1 principal energy level. For hydrogen J(1/n² ), C = 3 x10⁸ m/s, h = 6.626 x JS.
(A) 97.3 nm
(B) 82.6 nm
(C) 365 nm
(D)0.612 nm
(E) 6.8 nm

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