Question

what is the angle of incidence of a Ray if the reflected ray is at an angle of 90 degree to the incident ray​

Answer 1

Answer:

Then it will be normal that you draw on the plane first and then the incident ray

Answer 2

Answer:

45 degrees

Explanation:

angle of incidence = angle of reflection = x

angle formed by reflected ray to the incident ray​ = angle of incidence + angle of reflection

so 90 = 2x

x = 45

therefore

angle of incidence = 45