A) 8.33 cm
B) 1.66 cm
C) 12.5 cm
D) 10 cm
Correct Answer: D
Solution :
\[P={{P}_{1}}+{{P}_{2}}\]\[=+12-2=10D\] Now \[F=\frac{1}{P}=\frac{1}{10}m\]\[=\frac{1}{4}+\frac{1}{-5}=\frac{1}{20}\].You need to login to perform this action.
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