Physics, asked by Anonymous, 1 year ago

Answer no. B only fast


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Answered by akshitht03
1

i)Power of lens is the reciprocal of the focal length of a lens.

ii)Negative sign shows that he is using a concave lens which indicates he has myopia

iii)P=1/f

-2.5D=1/f

f=-0.4m

=40cm



akshitht03: welcome
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