Question

Q. 4. State the law of refraction.

Ans. For a given pair of media the ratio of
sine of angle of incidence and sine of angle of
refraction is always a constant.
sini
142 =
sinr
Where i is the angle of incidence and r is the
angle of refraction.
.
•स्टेट लॉस ऑफ रिफ्लेक्शन ​

Answer 1

Answer:

the principle that for a ray, radar pulse, or the like, that is incident on the interface of two media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocity of the ray in the first medium to the velocity in the second medium and the incident ray.