After cooling bimetallic strip bends
Water expansion occurs when
When the metal ball loses heat and cools, its volume
The uneven expansion of bimetallic strip is used in
In laboratory the thermometer which is used to measure temperatures is
Railway tracks have gaps between them to deal with expansion in
Heat loss may help the matter to
A joint which is made between adjoining rails to expand without bending is called
In SI unit of temperature is
A very good conductors of heat contains
Materials trapped air by fur, feathers, wool and sawdust are heat
In melting of ice cube the heat gain
Mercury is
A solar panel is kept black surface so that it absorbs more
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