MCQOPTIONS
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MCQOPTIONS
| 1. |
A metallic rod breaks when strain produced is 0.2%. The Young's modulus of the material of the rod is\[7\times {{10}^{9}}N/{{m}^{2}}\]. What should be its area of cross-section to support a load of 104 N? |
| A. | \[7.1\times {{10}^{-8}}{{m}^{2}}\] |
| B. | \[7.1\times {{10}^{-6}}{{m}^{2}}\] |
| C. | \[7.1\times {{10}^{-4}}{{m}^{2}}\] |
| D. | \[7.1\times {{10}^{-2}}{{m}^{2}}\] |
| Answer» D. \[7.1\times {{10}^{-2}}{{m}^{2}}\] | |