What is the difference between a sun shower and a rainbow?

 A sun shower is a meteorological phenomenon in which rain falls while the sun is shining. It occurs when a layer of rain clouds passes over an area but the sun is still visible behind the clouds, casting a rainbow effect on the rain.

A rainbow, on the other hand, is a natural optical phenomenon that occurs when light is refracted, or bent, as it passes through water droplets in the air. When the refracted light hits the eye, it creates a spectrum of colors that appears as a circular arc in the sky. Rainbows can occur anytime there is water in the air, such as during a rainstorm or after a rain shower. They are typically seen in the sky when the sun is shining, and are most commonly seen when the sun is at a low angle in the sky, such as during sunrise or sunset.

So, while a sun shower and a rainbow may both involve rain and the sun, they are different phenomena. A sun shower is a type of rain that occurs while the sun is shining, while a rainbow is a colorful arc that appears in the sky due to the refraction of light through water droplets.