Question

The limiting line in Balmer series will have a frequency of :

• A. 32.29 $\times$ 10${}^{15}$ s${}^{-1}$
• B. 3.65 $\times$ 10${}^{14}$ s${}^{-1}$
• C. -8.22 $\times$ 10${}^{14}$ s${}^{-1}$
• D. 8.22 $\times$ 10${}^{14}$ s${}^{-1}$

Answer 1

The correct option is D 8.22 $\times$ 10${}^{14}$ s${}^{-1}$

The limiting line of Balmer series refers to the transaction from $\infty$ to 2nd orbital.
v = 3.29 $\times$ 10${}^{15}$ ($\frac{1}{n_1^2}$- $\frac{1}{n_2^2})$ s${}^{-}$
=3.29 $\times$ 10${}^{15}$ $\times$ $\frac{1}{4}$ = 8.22 $\times$ 10${}^{14}$ s${}^{-1}$