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) [EAMCET 2001] |
| A. | 100°C |
| B. | 125°C |
| C. | Radiation |
| D. | 200°C |
| Answer» D. 200°C | |