(5) The speed of light in water and glass is2.2 x 103 m/s and 2 x 103

1.	(5) The speed of light in water and glass is2.2 x 103 m/s and 2 x 103 m/s respectively. Whatis the refractive index of (i) waterto glass (ii) glass with respect to water?with respect
Answer» if refrative index is more , speed of light will be less so, r(g/w) = (1/2×10^8)/(1/2.2×10^8) = 2.2/2 = 1.1 and similarly r(w/g) = 2/2.2 = 10/11 = 0.909

(5) The speed of light in water and glass is2.2 x 103 m/s and 2 x 103 m/s respectively. Whatis the refractive index of (i) waterto glass (ii) glass with respect to water?with respect

Answer»

if refrative index is more , speed of light will be less

so, r(g/w) = (1/2×10^8)/(1/2.2×10^8) = 2.2/2 = 1.1

and similarly r(w/g) = 2/2.2 = 10/11 = 0.909