What is the shortest wavelength present in the Paschen series of spectral lines?

Explanation

To find the shortest wavelength present in the Paschen series of spectral lines, we can follow these steps:

### Step 1: Understand the Paschen Series
The Paschen series corresponds to electron transitions from higher energy levels (n ≥ 4) to the n = 3 energy level in a hydrogen atom.

### Step 2: Use the Rydberg Formula
The Rydberg formula for the wavelength (λ) of spectral lines is given by:

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