#### Answer

4 to 2

#### Work Step by Step

From the figure, line F has a wavelength of approximately 485 nm, which, according to figure 6-10, corresponds to a transition from $n=4$ to $n=2$ (486.1 nm).

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Published by
Cengage Learning

ISBN 10:
1133949649

ISBN 13:
978-1-13394-964-0

4 to 2

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