A hunter fired a metallic bullet of mass ‘m’ kg from a gun towards an obstacle and it just melts when it is stopped by the obstacle . The initial temperature of the bullet is 300K. If 1/4thof heat is absorbed by the obstacle , then the minimum velocity of the bullet is [ Melting point of bullet =600K, Specific heat of bullet =0.03\text{cal}g^{-1}^\circC^{-1} Latent heat of fusion of bullet =6\text{cal}g^{-1}

AP EAMCET Engineering 2016 Code C Paper

Section: Physics

Question : 108 of 160

Marks: +1, -0

A hunter fired a metallic bullet of mass ‘m’ kg from a gun towards an obstacle and it just melts when it is stopped by the obstacle . The initial temperature of the bullet is 300K. If

thof heat is absorbed by the obstacle , then the minimum velocity of the bullet is
[ Melting point of bullet =600K,
Specific heat of bullet =0.03calg−1°C−1
Latent heat of fusion of bullet =6calg−1

410ms−1
260ms−1
460ms−1
310ms−1

Validate

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