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प्रश्न
Fill in the blank
A hot metallic piece is placed in tap water contained in a bucket. Heat will flow from _______ to _________
उत्तर
A hot metallic piece is placed in tap water contained in a bucket. Heat will flow from metallic piece to water.
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संबंधित प्रश्न
Give two examples each of conductors and insulators of heat.
No medium is required for transfer of heat by the process of ______.
A wooden spoon is dipped in a cup of ice cream. Its other end ______.
Stainless steel pans are usually provided with copper bottoms. The reason for this could be that ______.
Write true or false for a given statement.
Black surfaces are the poor absorbers of heat radiations.
Select the correct alternative
In the process of convection, heat travel
Maximum heat is absorbed by a ______ coloured object.
Why are the houses in Rajasthan painted white?
Explain which mode of heat transfer causes sea breezes and land breezes.
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.
