Question

describe for 5 marke formation of rainbow and why stars twinkle

Answer 1

Stars twinkle because of turbulence in the atmosphere of the Earth. As the atmosphere churns, the light from the star is refracted in different directions. ... The reason is that stars are so far away that they are essentially points of light on the sky, while planets actually have finite size.

Answer 2

Stars are twinkle because... they are very distant, they are approximately point sized source of light...As the path of rays of light coming from the star goes on changing, the looking position of star fluctuates and amount of light entering in the eye flickers so the star appears brighter and sometime fainter....

A rainbow is a natural spectrum appearing in the sky after the rain... A rainbow is always formed in a direction opposite to that of the sun..It is caused by dispersion of sunlight by a small water droblet act as a small prism. They refract and dispress the incident sunlight, then reflect it internally. Due to the dispersion of total internal reflection, different colours reach the observer's eye....

Thankyou
I hope it helps you
Love u