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Hydrogen atom electrons emit photos when the fall from higher energy levels to lower energ levels. For the n 4 1 transition,
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We know that Rydberg equation is 1 R1 1 whcrc R 2.18x1018 J h= 6.626× 10 34 J-s c-3x108 m.s hc Given n-= n,-4 AE=2.18x10-18 J

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