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A doctor prescribes a corrective lens of power - 0.5 D to a person. Find the focal length of the lens. Is this lens diverging or converging ? Give reason.How does the property of this lens can be used to correct eye defects ? |
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Answer» Answer: Type your question... 12th Physics Ray Optics and Optical Instruments Defects of Vision and Correction A doctor has prescribed a C... PHYSICS A doctor has prescribed a corrective lens of POWER +1.5D. Find the focal length of the lens. Is the prescribed lens diverging or CONVERGING? December 27, 2019 avatar Bijayalaxmi Latha Share Save ANSWER Power of lens p=+1.5D p= f 1
1.5= f 1
f= 1.5 1
m f= 15 10
m f= 3 2
m=0.67m Focal length of the lens is +0.67m. The prescribed lens is converging in NATURE |
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