Advertisements
Advertisements
प्रश्न
Select the correct alternative
In the process of convection, heat travel
विकल्प
sideways
downwards
upwards
in all directions
Advertisements
उत्तर
upwards
APPEARS IN
संबंधित प्रश्न
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.
Fill in the blank
Heat transfer in solids is by ______
Select the correct alternative
If we add a lump of ice to a tumbler containing water,
Give one example of heat transfer by radiation.
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?
Explain which mode of heat transfer causes sea breezes and land breezes.
Why is the outer coat of the penguins of Antarctica black?
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.
