Question

State the laws of refraction of light. If the speed of light in vacuum is 3 x 108 m/s,

find the speed of light in a medium of absolute refractive index 1.5.​

Answer 1

Answer:

Here, n₁₂ is the relative refractive index of medium 1 with respect of medium 2. (b) The incident ray, the refractive ray and the normal to the interface of two media at the point of incidence lie on the same path. Hence, the speed of light in the medium of refractive index 1.5 is 2 × 10⁸ m/s.

Explanation:

hope u got it

Answer 2

Answer:

1) The incident ray refracted ray, and the normal to the interface of two media at the point of incidence all lie on the same plane.

2) The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant. This is also known as Snell’s law of refraction

u = c/V

v= c/ u

= 3× 10^8/1.5

= 2 × 10 ^8