A plane mirror is rotated through an angle θ while the incident ray remains fixed. Which statements are correct?

Select all that apply

• Option A

  The mirror normal rotates through θ.

• Option B

  The reflected ray rotates through 2θ.

• Option C

  The angle of incidence changes by θ in magnitude, provided the same side convention is maintained.

• Option D

  The reflected ray necessarily rotates through only θ.