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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 2 > Chapter 17 - Refraction of Light by Plane Surfaces > A ray of light travelling inside a rectangular glass block of refractive index root 2 is incident on the glass-air surface at an angle of incidence of 45^o. The refractive index of air is 1. The ray will

A ray of light travelling inside a rectangular glass block of refractive index root 2 is incident on the glass-air surface at an angle of incidence of 45^o. The refractive index of air is 1. The ray will

The mean distance of sun from the earth is 1.5×10^8 km. The time taken by light to reach earth from the sun is