A) \[1/\sqrt{10}\]
B) \[2/\sqrt{10}\]
C) \[4/\sqrt{10}\]
D) \[\sqrt{10}\]
Correct Answer: B
Solution :
Distance\[=2\sqrt{\frac{{{g}^{2}}-ac}{a(a+b)}}=\frac{2}{\sqrt{10}}\].
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