A) 1/2 year
B) \[2\sqrt{2}\] years
C) 4 years
D) 8 years
Correct Answer: B
Solution :
\[\frac{{{T}_{2}}}{{{T}_{1}}}={{\left( \frac{{{r}_{2}}}{{{r}_{1}}} \right)}^{3/2}}={{(2)}^{3/2}}=2\sqrt{2}\]Þ \[{{T}_{2}}=2\sqrt{2}\] years.
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