Power of lens is 4.5 D.Find its focal length
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Answered by
4
P=1÷f
f=1÷4.5
=0.22cm
Thanks
f=1÷4.5
=0.22cm
Thanks
Answered by
1
power of lens =4.5 d
f =1/p
f=1/4.5
f =1/p
f=1/4.5
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