Page 47 - cbse-class-10-light-reflection-and-refraction
P. 47
Formation of a Rainbow
The small raindrops that remain suspended in the air after the rain act as a prism.
When sunlight passes through these raindrops, it disperses and we see the
rainbow's seven colors.
Atmospheric Refraction
Atmospheric refraction is the apparent direction shift of a celestial object caused
by light ray refraction as they pass through Earth's atmosphere. Starlight refraction
causes the twinkling of stars and variations in the size of the Sun.
Twinkling of Stars
Class X Science www.vedantu.com 47
