Light has several properties like reflection, refraction etc. When light travels from an optically denser medium to a rarer medium, what happens to the light at the interface?

Light has several properties like reflection, refraction etc. What happens when light travels from an optically denser medium to a rarer medium?

Draw the diagram of a light ray travelling from rarer to denser medium

In which conditions total internal reflection takes place ? Light obliquely travels from the optically rarer medium to thr optically denser medium. , Light obliquely travels from the optically denser medium to the optically rarer medium, Incident angle is equal to the critical angle. , Incident angle is greater than critical angle.

A light ray is travelling from rarer to denser medium. State the law relating i and r for retracted ray

Refraction of light is the phenomenon of change in the path of light ray when it goes from one medium to another. State the laws of refraction