Question

38. If local length of a lens is 100cm, then the power______
D.
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Answer 1

Answer:

We know that

Power = 1/f

P = 1/100

P = 0.01 D.

Hope this will help.

Answer 2

Answer:

ANSWER

the focal length of converging lens is positive

then power is positive

f=100cm=1m

P=+ 1/f

=>P=1/1 =+1D