Question

Explain and draw a diagram to show what happens to light when it enters oil kept in a
glass.​

Answer 1

Answer:

Light travels at different speeds through different substances. This change in speeds causes light to refract (bend). When two substances have the same index of refraction, light passes through it at the exact same speed and our eyes cannot tell the difference between them.

diagram showing the difference in indices of refraction in oil, glass, and water

Answer 2

Answer:

By the way your intro??

I am sanchita