Advertisements
Advertisements
प्रश्न
Select the correct alternative
Heat in a liquid is transferred by
पर्याय
conduction
convection
radiation
conduction and radiation
Advertisements
उत्तर
convection
APPEARS IN
संबंधित प्रश्न
Give two examples each of conductors and insulators of heat.
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.
Liquids are heated by conduction and radiation.
Write true or false for a given statement.
Black surfaces are the poor absorbers of heat radiations.
Why is the freezing chest in a refrigerator fitted near its top?
Conduction of heat takes place through a ______ substance.
How does a fever get lowered by putting a cold compress on the forehead of a patient?
What are the modes of heat transfer?
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.
