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प्रश्न
A cement floor is laid in small pieces with gaps in between.
उत्तर
In summer when the temperature rises small pieces of cement expand and to allow expansion gaps are left between small pieces.
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संबंधित प्रश्न
All solids expand by the same amount when heated to the same rise in temperature.
A mercury thermometer makes use of the property of expansion of liquids on heating.
Alcohol expands ........... than water.
Two rods A and B of the same metal, same length, but one solid and the other hollow, are heated to the same rise in temperature.
A given volume of alcohol and the same volume of water are heated from the room temperature to the same temperature then.
Name the three states of matter and distinguish them on the basis of their (i) volume, and (ii) shape
Describe an experiment to demonstrate the thermal expansion in solids.
Two identical rods, one hollow and the other solid are heated to the same rise in temperature. Which will expand more?
______ exists when two objects In thermal contact no longer affect each other’s temperature.
The radius of a metal sphere at room temperature T is R and the coefficient of linear expansion of the metal is α. The sphere is heated a little by a temperature ΔT so that its new temperature is T + ΔT. The increase in the volume of the sphere is approximate.
