Question

9. Mirror invention: You stand at corner A of a 2 meter square ABCD drawn on the floor, facing corner B. A flat mirror at corner D reflects an image of you from D to a 2nd flat mirror at B, which in turn provides you with a clear view of your right profile (i.e. the right-side view of your head). 9a. What angle does the surface normal of the 1$^{st}$ mirror make with the line from D to A? (Hint: Shown angles are NOT aligned correctly.) 9b. What will you see if you turn to face the mirror at D, and why?

          9. Mirror invention: You stand at corner A of a 2 meter
square ABCD drawn on the floor, facing corner B. A flat
mirror at corner D reflects an image of you from D to a 2nd
flat mirror at B, which in turn provides you with a clear view
of your right profile (i.e. the right-side view of your head).
9a. What angle does the surface normal of the 1$^{st}$ mirror make
with the line from D to A? (Hint: Shown angles are NOT aligned
correctly.)
9b. What will you see if you turn to face the mirror at D, and why?

Added by Agust-N B.

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