A) 1 mm
B) 4 mm
C) 2 mm
D) 8 mm
Correct Answer: B
Solution :
[b] \[\frac{1}{10}=\frac{1}{V}=-\frac{1}{(-15)}\Rightarrow v=+30\,cm\] for small object \[dv=\frac{{{v}^{2}}}{{{u}^{2}}}du={{\left( \frac{30}{15} \right)}^{2}}\times 1=4\,mm\]You need to login to perform this action.
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