A hydrogen atom is in second excited state. Calculate the maximum possible spectral lines emitted for hydrogen atom to reach its ground state.

Explanation

To solve the problem of how many spectral lines a hydrogen atom in the second excited state can emit while transitioning to its ground state, we can follow these steps:

### Step 1: Identify the Energy Levels
The hydrogen atom's energy levels are defined by the principal quantum number \( n \). The ground state corresponds to \( n = 1 \), the first excited state corresponds to \( n = 2 \), and the second excited state corresponds to \( n = 3 \).

### Step 2: Determine the Initial State
Since the hydrogen atom is in the second excited state, it is at \( n = 3 \).

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