with the help of diagram explain how light gets refracted when it passes through a rectangular glass slab
Answers
The following are the laws of refraction of light (i) The incident ray, the refracted ray and the normal to the interface of two transparent media at the point of incidence, all lie in the same plane. (ii) The ratio of sine of angle of incidence to the sine of angle of refraction is constant, for the light of a given colour and for the given pair of media. This law is also known as Snell's law of refraction. And the constant is called refractive index. The ray diagram is as shown. In a rectangular or glass slab, the emergent rays are parallel to the incident ray because the extant of bending of the ray of light at the opposite parallel faced of rectangular glass slab are equal and opposite, so that emergent ray is parallel to incident ray.
![](https://hi-static.z-dn.net/files/d80/49d8e4ffe1316066e917dc70b5cf1ba9.png)
Answer:
Explanation:in the image you can see the refraction of light in a glass slab
![](https://hi-static.z-dn.net/files/df4/b11f77e58f5764201719d68cedacd722.png)