A) \[\frac{(f+x)}{f}\]
B) \[\frac{f}{x}\]
C) \[\sqrt{\frac{f}{x}}\]
D) \[\frac{{{f}^{2}}}{{{x}^{2}}}\]
Correct Answer: B
Solution :
[b] \[\frac{v}{u}=\frac{f}{u-f}=\frac{f}{\text{distance}\,\text{of}\,\text{object}\,\text{from}\,\text{focus}}\] \[=\frac{f}{x}\]
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