Infront of a convex mirror
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If the light-rays actually cross in front of the mirror then the image is real. ... The focal length of the mirror is positive if the mirror is concave, so that the focal point is located in front of the mirror, and negative if the mirror is convex, so that the focal point is located behind the mirror.
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If the light-rays actually cross in front of the mirror then the image is real.
The focal length of the mirror is positive if the mirror is concave, so that the focal point is located in front of the mirror, and negative if the mirror is convex, so that the focal point is located behind the mirror.
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