Answer to Question #115280 in Physics for Amelia Alis

Question

what will be the rate of spontaneous emission to the stimulated emission in sun?is laser action possible in sun?

Answer 1

The rate of spontaneous emission to the stimulated emission in sun:

$$r=\frac{A}{B}>>1.$$

However, it can be possible to obtain laser action in the sun for very short periods of time.