A person is known to use a lens of
Pouler
-7.5D for his distant vision.
(11 43D for his near vision
Calculate the focal length of the le
used for correcting his
@ distant vision and
6 Near vision Problem
Answers
Answered by
1
Answer:
7.5
Step-by-step explanation:
THE DEFECT OF THE PERSON IS=MYOPIA
FOCAL LENGTH = -D
-7.5 D is given so the focal length of the lens is 7.5 cm
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Answered by
1
Answer:
Here it is......
We know that...
- P=1/f (in metre)
- -7. 5 =1/f
- f= -1/7.5 m is the ans.
- (The person is suffering from myopia and having negative focal length shows concave lens which is used for correcting it)
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