Q. 19

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Found in: Page 1207

### Physics for Scientists and Engineers: A Strategic Approach with Modern Physics

Book edition 4th
Author(s) Randall D. Knight
Pages 1240 pages
ISBN 9780133942651

# An excited state of an atom has a lifetime. What is the probability that an excited atom will emit a photon during a interval?

The probability that an excited atom will emit a photon during a interval is

See the step by step solution

## Step 1: Given Information

We need to find the probability that an excited atom will emit a photon during a interval.

## Step 2: Simplify

Consider :

Using formula:

.

First, finding the decay rate:

Now, find prob decay :