In the Formula 1 $\lambda$ = R (1 / N_f² - 1/n_i²), Balmer Found That

question 42

Multiple Choice

In the formula 1/ $\lambda$ = R (1 / n_f² - 1/n_i²) , Balmer found that for the visible lines in hydrogen that n_f = _______.

• A) 1
• B) 2
• C) 3
• D) 4
• E) 5

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