Problem: Consider the three electronic transitions in a hydrogen atom shown here, labeled A, B, and C.Three electromagnetic waves, all drawn on the same scale, are also shown. Each corresponds to one of the transitions. Which electromagnetic wave--(i), (ii), or (iii)--is associated with electronic transition A?

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We are asked which electromagnetic wave--(i), (ii), or (iii)--is associated with electronic transition A?


↑ gap transition → ↑ Energy → ↓ wavelength → ↓ gap wave peaks


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Consider the three electronic transitions in a hydrogen atom shown here, labeled A, B, and C.

A transition diagram shows that (A) is the large transition from n equals 2 to n equals 1; (B) is the medium transition from n equals 3 to n equals 2; and (C) is the small transition from n equals 4 to n equals 3.Graphs show three waves over the same distance with (i) very dense peaks and troughs, (ii) medium-density peaks and troughs, and (iii) very few peaks and troughs.

Three electromagnetic waves, all drawn on the same scale, are also shown. Each corresponds to one of the transitions. Which electromagnetic wave--(i), (ii), or (iii)--is associated with electronic transition A?

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