CONVEX MIRRORS
A convex mirror produces a
virtual image, like a plane mirror, but the image is greatly
reduced in size. Thus a convex mirror is often called a "wide
angle" mirror, since it compresses a much larger angle of view
into its frame than a flat mirror would.
With the appropriate sign
conventions we can use the same basic expression, (1/p) +
(1/q) = (1/f), just as we did for the concave mirror. R,
f and q are taken as negative.
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(n1/p) + (n2/q)
= (n2 - n1)/R
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