A) \[[{{M}^{2}}L{{T}^{-2}}\theta ]\]
B) \[[M{{L}^{3}}{{T}^{-2}}{{\theta }^{-1}}]\]
C) \[4\sqrt{\frac{h}{g}}\]
D) \[2\sqrt{\frac{h}{g}}\]
Correct Answer: C
Solution :
Elongation, \[\frac{RT}{2V-b}-\frac{9}{4{{b}^{2}}},\] or \[{{M}_{1}}\] \[{{L}_{1}}\] \[{{M}_{2}}\] \[{{L}_{2}}\,.\,{{M}_{1}}={{M}_{2}}\] or \[{{L}_{1}}\,.\,2{{L}_{2}}\] The change in the length of other wire is \[\frac{1}{\sqrt{2}}s\].
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