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Reflection of Light

Q- A person stands 4.0 meters in front of a floor-to-celing mirror. Her eyes are 1.9 meters above the floor. She sees the reflection of light from her shiny toe of shoe.
a) At what angle of incident must the light from the toe of her shoe strike the mirror so the light will reach her eyes?
b) How high above the floor does the incident ray from her toe strike the mirror.

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