A man is unable to see closer than 1 m clearly. What should the power of lenses of his spectacles be to see nearby objects?
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Answered by
12
P=1/f(in metres)
f=1
Therefore p=1/1= 1D
f=1
Therefore p=1/1= 1D
VittoriaNevue123:
Err... That is not the answer. I thought so too.
oh
then how?
That's why I asked it.
ohk
Answered by
74
so the power of lenses of his spectacles will be +3 D.
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