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प्रश्न
To keep her soup warm Paheli wrapped the container in which it was kept with a woollen cloth. Can she apply the same method to keep a glass of cold drink cool? Give reason for your answer.
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उत्तर
Yes, she can apply the same method to keep a glass of cold drink cool because wool is a poor conductor of heat.
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संबंधित प्रश्न
Fill in the blank
Heat is a form of _______.
Cooking utensils are made from metals due to their property of ______.
Calorie is the unit of ______.
A device in which the loss of heat due to conduction, convection and radiation is minimized is ______.
Analogy:
Movement of molecules:: Heat.
Heat energy:: ______.
The SI unit of heat energy is ______.
Black color is a ______ absorber of heat.
In summer, we prefer light – colored clothes and in winter we usually wear dark – colored clothes.
In which of the following, chemical energy is converted into heat energy?
Explain the following effects of heat.
Chemical changes
