MCQOPTIONS
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MCQOPTIONS
| 1. |
Young's moduli of two wires A and B are in the ratio 7 : 4. Wire A is 2 m long and has radius R. Wire B is 1.5 m long and has radius 2 mm. If the two wires stretch by the same length for a given load, then the value of R is close to: |
| A. | 1.5 mm |
| B. | 1.9 mm |
| C. | 1.7 mm |
| D. | 1.3 mm |
| Answer» D. 1.3 mm | |