Mirage is caused due to
Scattering of light by the various layers of air
Dispersion of light by the various layers of air
Total Internal Reflection of light by the various layers of air
Both b and c
Mirage is caused due to total Internal Reflection of light by the various layers of air.
Question 6 Twinkling of stars is due to atmospheric (a) dispersion of light by water droplets (b) refraction of light by different layers of varying refractive indices (c) scattering of light by dust particles (d) internal reflection of light by clouds