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प्रश्न
Fill in the blank
Heat transfer in solids is by ______
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उत्तर
Heat transfer in solids is by conduction.
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संबंधित प्रश्न
No medium is required for transfer of heat by the process of ______.
Stainless steel pans are usually provided with copper bottoms. The reason for this could be that ______.
Fill in the blank
Heat transfer in liquids and gases is by ________.
State the direction of heat transfer by way of convection.
Explain briefly the process of heat transfer by radiation.
______ of heat does not require a medium.
Conduction of heat takes place through a ______ substance.
The handles of cooking utensils are made of ______.
Heat is the transfer of energy between two objects at different temperatures.
Take two similar transparent glass bottles having wide mouths. Put a few crystals of potassium permanganate or pour a few drops of ink in one bottle. Fill this bottle with hot water. Fill the other bottle with cold water. Cover the cold water bottle with a thick piece of paper such as a postcard. Press the postcard firmly with one hand and hold the bottle with the other hand. Invert the bottle and place it on top of the hot water bottle. Hold both the bottles firmly. Ask some other person to pull the postcard. Observe what happens. Explain.
