The far point of a myopic person is `150 cm` in front of the eye. Calculate the focal length and power of a lens required to enable him to see distant objects clearly.
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Here, `x = 150 cm, f = ?, P = ?` To see distant objects clearly, `f = - x = - 150 cm = - 1.5 m` `P = (100)/(P) = (100)/(-150) = - 0.67 D`
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