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The ratio of maximum tension in two string of same material having radii in the ratio 3 : 5

$\begin{array}{1 1}(A)\;1 : 1\\(B)\;3 : 5\\(C)\;5 : 3\\(D)\;9 : 25\end{array} $

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AB the string made up of same material,the breaking stress is same so
$\Rightarrow (\large\frac{3}{5})^2$
$\Rightarrow \large\frac{9}{25}$
Hence (D) is the correct answer.
answered May 8, 2014 by sreemathi.v

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