Question

In the above diagram light is travelling through different media. It is noted by a scientist that ∠1= ∠3 = ∠4 but ∠2 < ∠1. Which of the following statement would be correct?

Options

• Medium 1 is the denser than medium 3 but its density is equal to medium 2.

• Medium 2 is the rarest medium.

• Medium 3 is denser than medium 1.

• Medium 1 and 3 are essentially the same medium, but medium 2 is denser than 1 and 3.

Answer 1

Medium 1 and 3 are essentially the same medium, but medium 2 is denser than 1 and 3.