MCQOPTIONS
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MCQOPTIONS
| 1. |
An iron rod of length 2m and cross section area of \[50\,m{{m}^{2}}\], stretched by 0.5 mm, when a mass of 250 kg is hung from its lower end. Young's modulus of the iron rod is [AFMC 1999] |
| A. | \[19.6\times {{10}^{10}}\,N/{{m}^{2}}\] |
| B. | \[19.6\times {{10}^{15}}\,N/{{m}^{2}}\] |
| C. | \[19.6\times {{10}^{18}}\,N/{{m}^{2}}\] |
| D. | \[19.6\times {{10}^{20}}\,N/{{m}^{2}}\] |
| Answer» B. \[19.6\times {{10}^{15}}\,N/{{m}^{2}}\] | |