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प्रश्न
Telephone wires are kept tight between the two poles in winter.
पर्याय
True
False
उत्तर
True.
APPEARS IN
संबंधित प्रश्न
All solids expand by the same amount when heated to the same rise in temperature.
Solids expand the least and gases expand the most on being heated.
Why does bubbles appear when a liquid is heated?
Give two examples of the substances which expand on heating.
The gaps are left between the successive rails on a railway track.
Describe an experiment to show that liquids expand on heating.
Which of the following will expand more, when heated to the same temperature : (a) solid (b) liquid and (c) gas?
Give two uses of a bimetal strip.
Complete the following sentence:
In a bimetal two metals of different _______ of _______ are used.
______ exists when two objects In thermal contact no longer affect each other’s temperature.
