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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.
All solids expand by the same amount when heated to the same rise in temperature.
Fill in the blank
In a thermometer, the commonly used liquid is _______
Select the correct alternative
Which of the statement is correct
What do you understand by thermal expansion of a substance ?
Why is a cement floor laid in small pieces with gaps in between?
What are the good and bad conductors of heat ? Give two examples of each.
In summer, ice is kept wrapped in a gunny bag. Explain the reason.
Why are quilts filled with fluffy cotton?
Why are chimneys provided over furnace in factories?
The applied heat energy can be realized as an increase in the average kinetic energy of the molecules.
