A Person needs a lens of power -2D for correcting his vision (a) what kind of defective he is suffering from?(b) what is the focal length of the corrective lens? (c)what is the nature of the corrective lens?
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Answered by
38
a) He is suffering from myopia
b) Power= 1/f
=>-2=1/f
=>f= -1/2
=> f= -0.5m
c) He should use concave to correct his defect in eyes.
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b) Power= 1/f
=>-2=1/f
=>f= -1/2
=> f= -0.5m
c) He should use concave to correct his defect in eyes.
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Answered by
15
Myopia is the disease
The focal length is -0.5 and concave lens is required for correction
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