Questions
A man can see the objects upto a distance of one metre from his eyes. For correcting his eye sight so that he can see an object at infinity, he requires a lens whose power is
a
+ 0.5 D
b
+ 1.0 D
c
+ 2.0 D
d
- 1.0 D
detailed solution
Correct option is D
The image of object at infinity should be formed at 100 cm from the eye1f=1∞−1100=1100So power =−100100=−1DDistance is given in cm but P=1fin metresTalk to our academic expert!
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