As the velocity of light is constant so the acceleration of the light is equal to zero.
a=dvdt
If the speed of light in air is 3 ×108 m/s and speed of light in water is reduced by a factor of 1.3 when compared with that of the speed of light in air. Find out the speed of light in water?
The speed of light in diamond is 125,000 km ms−1. What is its refractive index? (Speed of light in air = 3 ×108ms−1 )
The refractive index of water is 43. The speed of light in water is:
(Take the speed of light in air =3×108 ms−1)