____________ is a phenomenon which happens when a ray of light passes from one transparent medium to another.
Therefore, refraction is a phenomenon that happens when a ray of light passes from one transparent medium to another.
Describe an experiment to show that a light ray bends when it passes from one transparent medium into another transparent medium.
a transparent medium A floats on another transparent medium B. when a ray of light travels obliquely from A to B, the reflected ray bends away from the normal. Which of the 2 media A and B is optically denser and why?