The power
of spectacles lens required for a person
is -5 dioptre when separation between spectacles
and eye is 2 cm. What will be the power of contact
lens required by him?
(1) -5.25 D
(2) -4.54 D
(3) -3.2 D
(4) -5.75 D
Answers
Answered by
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Answer:
1) -5.25D
Explanation:
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Answer: This may help you
Explanation:
Power(P)=1/Focal length (m)
Given,P=-2D
Therefore,Focal length=-½=0.5m
=>F=-50
Hence, maximum distance of an object, which he can see without spectacles is 50 cm.
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