A) + 3.0 D
B) + 0.125 D
C) ? 3.0 D
D) + 4.0 D
Correct Answer: A
Solution :
\[P=\frac{1}{f}=-\frac{1}{v}+\frac{1}{u}=-\frac{1}{100}+\frac{1}{25}=\frac{3}{100}=+\ 3\ D\]You need to login to perform this action.
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