The region in the electromagnetic spectrum where the Balmer series lines appear is :
Show Hint
- Ultraviolet
- Visible
- Infrared
- Microwave
The Correct Option is B
Solution and Explanation
Step 2: \(\frac{1}{\lambda} = R_H\left(\frac{1}{2^2} - \frac{1}{n_2^2}\right)\). For \(n_2 = 3\): \(\frac{1}{\lambda} = 1.097\times10^{7}\times\frac{5}{36}\), so \(\lambda \approx 656\) nm. For \(n_2 \to \infty\): \(\lambda = \frac{4}{R_H} \approx 365\) nm.
Step 3: The visible lines are 656, 486, 434 and 410 nm (the series limit, 365 nm, is at the UV edge), so the Balmer series lies in the visible region.
Answer: (2) Visible
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