Question

tell the shape of rainbow and tell the reason​

Answer 1

Answer:

Rainbow is semicircle in shape

Explanation:

Light rays deflect from small drops of rain and they form a semicircle

Answer 2

Answer:

To see a rainbow, you need to be looking at light rain with the sun behind you. The rainbow is curved as it reflects the round shape of the sun. ... Rainbows are circular because raindrops are spherical. When light from the Sun enters a raindrop it is largely reflected back inside a cone with a half-angle of 42 degrees.