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प्रश्न
State one application of thermal expansion of liquids.
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उत्तर
Mercury is a metal found in liquid state. It expands more and uniformly over a wide range of temperature. So mercury is used as thermometric liquid.
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संबंधित प्रश्न
Write true or false for a given statement.
Heat flows from a body at a high temperature to a body at a low temperature when they are kept in contact.
Write true or false for a given statement.
Solids expand the least and gases expand the most on being heated.
Fill in the blank
Metals are _______ of heat.
Fill in the blank
Still air is an __________ of heat.
What do you understand by thermal expansion of a substance ?
Why do telephone wires sag in summer ?
Why are gaps left between successive rails on a railway track ?
Explain why we wear woolen clothes in winter.
Why do we prefer to wear white or light coloured clothes in summer and black or dark coloured clothes in winter ?
______ is greater for liquids than solids and it is maximum in gases.
