define the power of lens the power of lend is +2.0D find the focal length
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The power of a lens is defined as the reciprocal of the focal length of a lens.
Power = 1 / Focal length in metres
+2 = 1/f
f = 1/2 metre = 50 cm.
hope this helps you....
Power = 1 / Focal length in metres
+2 = 1/f
f = 1/2 metre = 50 cm.
hope this helps you....
Answered by
1
focal length is equal to +0.50m
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