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प्रश्न
Select the correct alternative
Heat in a liquid is transferred by
विकल्प
conduction
convection
radiation
conduction and radiation
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उत्तर
convection
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संबंधित प्रश्न
No medium is required for transfer of heat by the process of ______.
Write true or false for a given statement.
On touching a lump of ice, we feel cold because some heat passes from our body to the ice.
Write true or false for a given statement.
Black surfaces are the poor absorbers of heat radiations.
State the direction of heat transfer by way of convection.
Maximum heat is absorbed by a ______ coloured object.
______ of heat does not require a medium.
How does a fever get lowered by putting a cold compress on the forehead of a patient?
When a liquid boils, energy is absorbed.
Wrap a thin paper strip tightly around an iron rod. Try to burn the paper with candle while rotating the iron rod continuously. Does it burn? Explain your observation.
Take a sheet of paper. Draw a spiral on it as shown in Figure. Cut out the paper along the line. Suspend the paper as shown in Figure above a lighted candle. Observe what happens. Think of an explanation.
