Question

For a total internal reflection, which of the following is correct?
(a) Light travels from rarer to denser medium.
(b) Light travels from denser to rarer medium.
(c) Light travels in air only.
(d) Light travels in water only.

Answer 1

Answer:

the condition for internal reflection is that light should travelle from denser to rare

then only the light will move away from normal and there will be chances of internal reflection.

hope so helpful.

keep it up!!good question.

Answer 2

Answer:

(a)

In the example of rainbow, light rays undergo total internal reflection.In that case rays enters from rarer to denser medium.