A) 6
B) 14
C) 16
D) 18
Correct Answer: B
Solution :
Magnification \[\frac{{{f}_{o}}}{{{f}_{e}}}=10\] or \[{{f}_{o}}=10{{f}_{e}}\] Given \[{{f}_{e}}+{{f}_{o}}=1.1\,m\] \[{{f}_{e}}+10{{f}_{e}}=1.1\times 100\,cm\] \[11{{f}_{e}}=110\] \[{{f}_{e}}=10\] Magnification at least distance of distinct vision \[{{M}_{b}}=\frac{{{f}_{o}}}{{{f}_{e}}}\left( 1+\frac{{{f}_{e}}}{D} \right)\] \[=10\left( 1+\frac{10}{25} \right)=10\left( \frac{35}{25} \right)=14\]
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