Thermal expansion: short questions and numericals Written By: Mr. Amrit Panthi ( Lecturer of Physics) 1. Two bodies made up of same material have the same dimension and appearance but one is solid and other is hollow. When they are heated is the overall expansion same? 2. In question no. 1, if equal amount of energy is supplied then what will happen? 3. In question no. 1, if temperature is raised equally by heating then what will happen? 4. Why do solids expand on heating? 5. Why do frozen water pipe often burst? 6. Why is it sometime possible to loosen caps on screw top bottles by deeping into hot water? 7. Explain why the column of mercury in thermometer at first falls and then rises when placed in hot water? 8. Does the coefficient of linear expansion depend
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