Solids expand on heating because ................
Solids expand on heating because ................
- A
Kinetic energy of atom increases
- B
Potential energy of atom increases
- C
Total energy of atom increases
- D
The potential energy curve is asymmetric about the equilibrium distance between neighbouring atoms
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A lead bullet at $27\,^oC$ just melts when stopped by an obstacle. Assuming that $25\%$ of heat is absorbed by the obstacle, then the velocity of the bullet at the time of striking is ........ $m/s$ ($M.P.$ of lead $= 327\,^oC,$ specific heat of lead $= 0.03\,cal/g\,^oC,$ latent heat of fusion of lead $= 6\,cal/g$ and $J = 4.2\,joule/cal$ )
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If a bimetallic strip is heated it will
If a bimetallic strip is heated it will
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