power of lens is 2.0d what is focal length
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Answered by
1
p=1/f
2=1/f
2f=1
f=1/2
f=0.5
2=1/f
2f=1
f=1/2
f=0.5
Answered by
1
the focal lenght = 1/p
So according to the question power is +2.0 D f= 1/2.0 = 0.5 cm
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