A lead bullet of 10 gm 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(sp.heat of lead=150 J/KgK)

Options

(a) 100° C
(b) 125° C
(c) 150° C
(d) 200° C

Correct Answer:

150° C

Explanation:

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