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प्रश्न
Write true or false for a given statement.
Telephone wires are kept tight between the two poles in summer.
विकल्प
True
False
MCQ
सत्य या असत्य
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उत्तर
False.
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संबंधित प्रश्न
Write true or false for a given statement.
Water is a bad conductor of heat.
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Liquids expand _______ than the solids.
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Metals are _______ of heat.
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Black and dull surfaces are ______ of heat.
Iron rims are heated before they are fixed on the wooden wheels. Explain the reason.
State which expands more, when heated to the same temperature : solid, liquid or gas ?
What are the good and bad conductors of heat ? Give two examples of each.
Why do we use cooking utensils made up of copper.
Why is a tea kettle provided with an ebonite handle?
Explain why we wear woolen clothes in winter.
