A) 75 cm
B) 60 cm
C) 71 cm
D) 74 cm
E) 65 cm
Correct Answer: C
Solution :
\[\frac{1}{{{v}_{o}}}+\frac{1}{200}=\frac{1}{50}\Rightarrow {{v}_{o}}=\frac{200}{3}=66.6\,cm\] \[\therefore \] \[L={{v}_{o}}+{{f}_{e}}=66.6+5\approx 71\,cm\]You need to login to perform this action.
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