Question

when a light ray is incident from air to glass and gets reflected. angle of incidence is 57 degree ,what will be the incidence angle for reflective reflection again when it is incident from water to glass​

Answer 1

We know that

< i = < r.

So, angle of reflection = 57°

Again on reflection, the incidence angle for reflective reflection will be alternative to the reflected angle .

So, it will be same.

Hence, 57° is the answer.