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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 | |