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. \[200{}^\circ C\]


Discussion

No Comment Found

Related MCQs