<h2>Let us write about it </h2>
Explanation:
Refraction
It is the bending of light when it passes from one medium to another .
Reason : difference in the densities of medium
Types of medium ;
The material that refract the light most is the denser medium that is glass .
The material that will least refract will be a rarer medium that is : air
With increase in density , the bending of light increases and the incident ray bend more towards the normal ray .
It will bend towards normal as diamond is denser than air .
The picture of refraction is attached below :