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If you have a convex mirror, and you point a light at it horizontally, does the light always reflect through the focal point? (the point halfway on the line connecting border and the center, parallel to the light's initial path)
I remember learning this, but I think of a mirror in the shape of a semi-circle, and you point the light at the bottom, it only bounces along the edge...?
I remember learning this, but I think of a mirror in the shape of a semi-circle, and you point the light at the bottom, it only bounces along the edge...?