A) \[5.2\times {{10}^{6}}\,N{{m}^{-\,2}}\]
B) \[6.2\times {{10}^{6}}\,N{{m}^{-\,2}}\]
C) \[4.8\times {{10}^{6}}N{{m}^{-\,2}}\]
D) \[3.1\times {{10}^{6}}\,N{{m}^{-\,2}}\]
Correct Answer: D
Solution :
Stress \[=\frac{Mg}{\pi {{r}^{2}}}=\frac{4(3.1\pi )}{\pi 4\times {{10}^{-6}}}\] \[=3.1\times {{10}^{6}}\frac{N}{{{m}^{2}}}.\]You need to login to perform this action.
You will be redirected in
3 sec