A) \[\sqrt{2}\]
B) \[\sqrt{2/5}\]
C) \[\sqrt{5/3}\]
D) \[\sqrt{2/3}\]
Correct Answer: C
Solution :
\[{{I}_{solid}}=\frac{2}{3}Mr_{1}^{2}\] \[{{I}_{hollow}}=\frac{2}{3}Mr_{2}^{2}\] Given \[M{{I}_{solid}}=M{{I}_{hollow}}\] \[\frac{2}{5}r_{1}^{2}=\frac{2}{3}r_{2}^{2}\] \[\frac{{{r}_{1}}}{{{r}_{2}}}=\sqrt{\frac{5}{3}}\]You need to login to perform this action.
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