Statement 1: When white light ray passes through a prism it disperses into seven different colours this phenomenon is called dispersion.
Statement 2: Refraction depends on upon the wavelength of light and since different colours have different wavelengths hence are refracted at the different angle and so they are split into the colour spectrum.
How does the refractive index of a medium depend on the wavelength of light used?
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.