A) 4T
B) T/4
C) 8T
D) T/8
Correct Answer: C
Solution :
\[\frac{{{T}_{1}}}{{{T}_{2}}}={{\left( \frac{{{R}_{1}}}{{{R}_{2}}} \right)}^{3/2}}={{\left( \frac{R}{4R} \right)}^{3/2}}\Rightarrow \,{{T}_{2}}=8{{T}_{1}}\]
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