Emission transitions in the Paschen series end at orbit `n=3` and start from orbit `n` and can be represented as `v=3.29xx10^(15) (Hz)[1//3^(2)-1//n^(2)]`
Calculate the value of `n` if the transition is observed at `1285 nm`. Find the region of the spectrum.

Explanation

To solve the problem step by step, we will follow the instructions given in the video transcript while ensuring clarity and completeness.

### Step 1: Understand the Problem
We are given that the emission transitions in the Paschen series end at orbit \( n=3 \) and start from an orbit \( n \). The frequency of the transition can be represented by the formula:
\[ v = 3.29 \times 10^{15} \text{ Hz} \left( \frac{1}{3^2} - \frac{1}{n^2} \right) \]
We need to calculate the value of \( n \) when the transition is observed at a wavelength of \( 1285 \text{ nm} \).
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