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प्रश्न
Select the correct alternative
Which of the statement is correct
विकल्प
Iron rims are cooled before they are placed on cartwheels
A glass stopper gets tight on warming the neck of the bottle
Telephone wires sag in winter, but become tight in summer
A little space is left between two rails on a railway track
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उत्तर
A little space is left between two rails on a railway track
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संबंधित प्रश्न
Write true or false for a given statement.
All solids expand by the same amount when heated to the same rise in temperature.
Write true or false for a given statement.
Kerosene contracts on heating.
Write true or false for a given statement.
Water is a bad conductor of heat.
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On heating a body, its temperature _______.
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The temperature of boiling water is _______
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Liquids expand _______ than the solids.
Name a solid which is a good conductor of heat.
In summer, ice is kept wrapped in a gunny bag. Explain the reason.
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 ?
