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प्रश्न
A glass stopper stuck in the neck of a bottle can be removed by pouring hot water on the neck of the bottle. Explain why ?
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उत्तर
When hot water is poured over the neck of the bottle, it expands. As a result the stopper gets loosened and can be removed easily.
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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.
Water is a bad conductor of heat.
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