Question

What is refraction and also write its causes.​

Answer 1

Answer:

when a ray of light go to one medium to another ,then it change its path.it is called refraction.

it is because the particles of second medium change the path of ray and it is just like tyndall effect but in transparent medium because there particles density.

Answer 2

Answer:

In physics refraction means, bending of light.

when it travels from rarer medium to denser medium it bends away from normal and gets refracted.