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प्रश्न
The correct statement is
पर्याय
Iron rims are cooled before they are placed on the cart wheels.
A glass stopper gets tighten 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.
उत्तर
A little space is left between two rails on a railway track.
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संबंधित प्रश्न
All solids expand by the same amount when heated to the same rise in temperature.
Iron expands ............ than copper.
Two rods A and B of the same metal, but of length 1 m and 2 m respectively, are heated from 0°C to 100°C. Then
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.
What is evaporation? Explain it on the basis of molecular motion.
Why does bubbles appear when a liquid is heated?
Two identical rods, one hollow and the other solid are heated to the same rise in temperature. Which will expand more?
A glass stopper stuck in the neck of a bottle can be removed by pouring hot water on the neck of the bottle.
A cement floor is laid in small pieces with gaps in between.
How does the density of a substance (solid, liquid and gas) change on heating?
