A) \[\text{9}\text{.6 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-5}}}\text{m}\]
B) \[\text{19}\text{.6 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-7}}}\text{m}\]
C) \[\text{19}\text{.2 }\!\!\times\!\!\text{ 1}{{\text{0}}^{\text{-7}}}\text{m}\]
D) \[\text{9}\text{.6}\,\text{m}\]
Correct Answer: D
Solution :
The increase in length due to its own weight \[l=\frac{{{L}^{2}}dg}{2Y}\] \[=\frac{{{(8)}^{2}}\times 1.5\times {{10}^{3}}\times 9.8}{2\times 5\times {{10}^{6}}}\] \[=9.6\times {{10}^{-2}}m\] Hence, no option is matching.You need to login to perform this action.
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