A metallic bullet with an initial velocity of 500 {\m} \/ { s} penetrates a solid object and melts. The initial temperature of the bullet is 30^{\circ} {\C} and its melting point is 280^{\circ} {\C}. The ratio of total heat generated to the initial kinetic energy of the bullet will be : [Latent heat of fusion of metal =3.0 \times 10^4 {\J} \/ {\kg} and specific heat capacity of metal =200 {\J} \/ {\kg}- {\K} ]

KEAM 2023 Physics and Chemistry Solved Paper

Question : 52 of 120

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A metallic bullet with an initial velocity of 500m∕ s penetrates a solid object and melts. The initial temperature of the bullet is 30∘C and its melting point is 280∘C. The ratio of total heat generated to the initial kinetic energy of the bullet will be : [Latent heat of fusion of metal =3.0×104J∕kg and specific heat capacity of metal =200J∕kg−K ]

0.5
1.0
0.81
0.36
0.64

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