MCQOPTIONS
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MCQOPTIONS
| 1. |
A hammer of mass 1kg having speed of 50 m/s, hit a iron nail of mass 200 gm. If specific heat of iron is 0.105 cal/gm\[{}^\circ C\] and half the energy is converted into heat, the raise in temperature of nail is |
| A. | \[7.1{}^\circ C\] |
| B. | \[9.2{}^\circ C\] |
| C. | \[10.5{}^\circ C\] |
| D. | \[12.1{}^\circ C\] |
| Answer» B. \[9.2{}^\circ C\] | |