- #1

Prabhu1

## Homework Statement

The maximum no of spectral lines for a single atom during it's electron's transition is given by [∆n(∆n+1)]/2 . But I don't seem to arrive at the answer when a group of atoms are present . The question was -

**What is the maximum number of spectral lines possible for Balmer series when a set of 8 hydrogen atoms are irradiated with light and all are excited to 6th excited state and spectrum is obtained?**

2. Homework Equations

2. Homework Equations

[∆n(∆n+1)]/2

## The Attempt at a Solution

.[/B]I am able to calculate the spectral lines for 1 atom which comes out to be 15 . But the answer key says 5 . i am not able to understand how .