00:01
If the angle of incident of a ray of light is 42 degrees, what is each of the following? a, the angle of reflection, b, the angle the incident ray makes with the mirror, and c, the angle between the incident ray and the reflected.
00:16
So let's draw a diagram to help us answer our problem.
00:24
This line will represent the mirror and the red vector will represent the incident ray.
00:42
So the incident ray makes an angle of 42 degrees with respect to the normal of the mirror.
00:54
So this angle here is 42 degrees.
00:59
This is the angle of incidence that we also use the notation theta i.
01:05
So according to the law of reflection, the reflected ray is equal to the incident ray.
01:18
So this blue vector will indicate the reflected ray and it will be reflected at the same angle of incidence, 42 degrees, and we use notation theta r...