A doctor advices a 2d lens for a person for good vision.What is its focal length in cm
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P=1/f
2= 1/f
f=0.5m
Here is your answer which you want
2= 1/f
f=0.5m
Here is your answer which you want
Answered by
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Given that tge power of lens P=2D
We know that P=100/f (cm)
2=100/F
2F=100
F=100/2 =50cm
The focal length of the lens is 50
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