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If the focal lenghth of objective lens is increased then magnifying power of

If the focal length of the objective lens is increased then Magnifying power

If the length of objective lens in increased, then magnifying power of

If the focal length of the objective lens is increased then

If the focal length of the objective lens is increased then

If power of objective lens increases, then magnifying power…......

" If the focal length of a magnifier is "5cm" calculate,the magnifying power of the lens for relaxed eye "