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प्रश्न
Fill in the blank
Black and dull surfaces are ______ of heat.
उत्तर
Black and dull surfaces are good absorbers of heat.
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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.
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Write true or false for a given statement.
Water is a bad conductor of heat.
Fill in the blank
Gases expand _______ than the liquids.
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Metals are _______ of heat.
Name two substances which expand on heating.
In summer, ice is kept wrapped in a gunny bag. Explain the reason.
During day time, air blows from______ to______
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Explain the following effects of heat.
Expansion
