Question

State the laws of refraction of light. If the speed of light in vacuum is 3 x 108 ms-1, find the speed of light in a medium of absolute refractive index 1.5.(Delhi - 2014)

Answer 1

Explanation:

the incident ray the reflected ray and the normal to the interface of two transparent media at the point of incidence all lie in the same plane .

the ratio of sine of angle of incidence to the Sine of angle of refraction is a constant for a light of given colour and for a given pair of media

sini/sinr=constant

PLZ MARK AS BRAINLIEST

Answer 2

Answer:

n=1.5

v=?

c=3*108m/s

,. n=c/v

v=c/n=3*108/1.5

v=2*108m/s.