MCQOPTIONS
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MCQOPTIONS
| 1. |
A steel rod of length 1 m is heated from \[25{}^\circ C\] to \[75{}^\circ C\] keeping its length constant. The longitudinal strain developed in the rod is (Given: Coefficient of linear expansion of steel \[=12\times {{10}^{-6}}/{}^\circ C\]) |
| A. | \[6\times {{10}^{-6}}\] |
| B. | \[-6\times {{10}^{-5}}\] |
| C. | \[-6\times {{10}^{-4}}\] |
| D. | zero |
| Answer» C. \[-6\times {{10}^{-4}}\] | |