How does the magnifiaction of a magnifying glass differ from its magnifying power ?
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Magnification, `m = ("size of image")/("size of object") = (v)/(u)` , Magnifying power, `m' = ("angle subtended at eye image")/("angle subtended at eye by object")`, when both the object and image are located at the least distance vision (d) from the eye. `m' = (d)/(u)`. Clearly, `m != m'`, unless `v = d`.
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