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A doctor has prescribed a corrective lens of power+1.5 D .Find the focal length of the lens ....
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A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens.
17. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens.
CBSE 10: A doctor prescribed a corrective lens of power 1.5D
