A person cannot see objects beyond a distance of 2m, then find
i) Which type of eye defect he has?
ii) What is the focal length of the lens?
iii) What is the power of corrected lens needed?
iv) What kind of lens he has to be used to overcome his defect?
Answers
Answered by
4
Explanation:
(I) The person is suffering from myopia or short-sightedness.
(II)1/v-1/u=1/f
1/200-1/u=1/f
1/f=1/200
f=200cm=2m
(III)power =1/2=0.5D
(IV)He has to use a concave lens to correect the eye defect.
Answered by
0
Answer:
(ii)
Explanation:
what is the focal length of the leans
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