Question

If the angle of incidence of a light ray is 60°, then the
angle between the mirror and the reflected ray will be​

Answer 1

Answer: 30 degrees

Reason:
Since according to laws of reflection,

Angle of Incidence= Angle of Reflection.
Thus, angle of reflection will be sixty degrees too, that is, the degree between the normal and the reflected ray. But we have been asked to find out the angle between the reflected ray and mirror, which is known as the Glance angle.
And Formula to find out glance angle is:

Glance angle = 90degrees- angle of reflection.
Therefore, glance angle = 90-60

And thus,

Glance angle =30.

Answer 2

Your answer....

30°

According to laws of reflection....

Angle of incidence = Angle of reflection

Angle of reflection and the angle between the reflected ray and mirror are complementary angles.....

Let "X" be the angle between reflected ray and mirror.

Then,

60° + X = 90°

X = 30°