Refraction of light is the change in direction (bending of light rays) when it goes from one optically transparent medium to another. Refraction is the bending of a wave when it enters a medium where its speed is different. So, it happens because of the adjustment in speed of light on moving between one medium to another.
I Am School Teacher having more than 12 years of experience subject of Physics in ICSE and CBSE Schools. Also, I have done M.Sc., B.Ed. And presently pursuing post-graduation diploma in school leadership and Management.