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प्रश्न
Fill in the blank
Black and dull surfaces are ______ of heat.
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उत्तर
Black and dull surfaces are good absorbers of heat.
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संबंधित प्रश्न
Write true or false for a given statement.
A mercury thermometer makes use of the property of the expansion of liquids on heating.
Write true or false for a given statement.
Water is a bad conductor of heat.
Write true or false for a given statement.
Land and sea breezes are convection currents of cold and warm air.
State which expands more, when heated to the same temperature : solid, liquid or gas ?
Explain why we wear woolen clothes in winter.
Why are quilts filled with fluffy cotton?
What are the land and sea breezes? Explain their formation.
Why do we prefer to wear white or light coloured clothes in summer and black or dark coloured clothes in winter ?
During day time, air blows from ______ to ______.
In ice cubes, the force of attraction between the water molecules is ______.
