A) 8
B) 20
C) 30
D) 40
Correct Answer: D
Solution :
Here: Focal power of first lens\[{{P}_{1}}=0.5D\] Focal power of second lens\[{{P}_{2}}=20D\] Using the relation for magnifying power \[m=\frac{{{f}_{0}}}{{{f}_{e}}}=\frac{{{P}_{2}}}{{{P}_{1}}}=\frac{20}{0.5}=40\]You need to login to perform this action.
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