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


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