Question

state the basic causes of refraction of light​

Answer 1

Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused a change in speed. For example, when light travels from air into water, it slows down, causing it to continue to travel at a different angle and direction

Answer 2

Answer:

this change in the speed of light when it's move from one medium to another cause it to bend