MCQOPTIONS
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| 1. |
A lead bullet of 10 g travelling at 300 m/s strikes against a block of wood and comes to rest. Assuming 50% of heat is absorbed by the bullet, the increase in its temperature is (Specific heat of lead = 150J/kg, K) |
| A. | \[100{}^\circ C\] |
| B. | \[125{}^\circ C\] |
| C. | \[150{}^\circ C\] |
| D. | \[200{}^\circ C\] |
| Answer» D. \[200{}^\circ C\] | |