Question

When light rays move away from the normal while going from one medium to another, then they move from:

• A. a denser medium to a rarer medium.
• B. a rarer medium to a denser medium.
• C. a medium of low refractive index to a medium of high refractive index.
• D. a transparent medium to an opaque medium.

Hint:

Light bends {towards the normal} when moving to a denser medium and {away from the normal} when moving to a rarer medium.

Answer 1

The Correct Option is A

When light passes from a denser medium to a rarer medium, it speeds up and bends away from the normal due to a decrease in refractive index. This phenomenon follows Snell’s Law and is responsible for effects like total internal reflection.