A person having myopia uses a lens of focal length 20 cm to see the objects distinctly. What is the power of the lens in dioptre
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Answer:
your answer is 0.05 p
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distance of far point X=2m To view distant object clearly, concave lens of focal length −2m should be used.i.e. f=−X=−2mPower of lens =P= f1
= 0.05p
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