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प्रश्न
No medium is required for transfer of heat by the process of ______.
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उत्तर
No medium is required for transfer of heat by the process of radiation.
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संबंधित प्रश्न
Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.
Stainless steel pans are usually provided with copper bottoms. The reason for this could be that ______.
Write true or false for a given statement.
Medium is necessary for the transfer of heat by radiation.
Fill in the blank
Heat transfer in liquids and gases is by ________.
The earth receives heat from the sun by ______.
How does a fever get lowered by putting a cold compress on the forehead of a patient?
Why are the houses in Rajasthan painted white?
What are the modes of heat transfer?
When a liquid boils, energy is absorbed.
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.
