1.

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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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

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Bijayalaxmi Latha

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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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