Question
Thu December 08, 2011 By: Avi Wadhwa

Why is magnification taken as m=v/u for spherical lenses while it is taken m=(-v/u) for spherical mirrors?

Expert Reply
Fri December 09, 2011
this comes from geometrical proof. take any image diagram, one of lens and one of sph mirror.
try to prove from those diagram, taking similar triangles into consideration.
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