Refraction of light occurs due to change in the speed of light in different media.
Fill in the blanks
(1) The phenomenon of splitting of light into its component colours is _______
(2) Very fine particles mainly scatter _______ light.
(3) The phenomenon of change in the _______ of light when it passes from one transparent medium to another is refraction.
(4) The refractive index depends upon the _______ of propagation of light in different media.