Advertisements
Advertisements
प्रश्न
Stainless steel pans are usually provided with copper bottoms. The reason for this could be that ______.
पर्याय
copper bottom makes the pan more durable.
such pans appear colourful.
copper is a better conductor of heat than the stainless steel.
copper is easier to clean than the stainless steel.
Advertisements
उत्तर
Stainless steel pans are usually provided with copper bottoms. The reason for this could be that copper is a better conductor of heat than the stainless steel.
Explanation:
This allows for more even heat distribution and quicker heating, improving cooking efficiency and performance.
APPEARS IN
संबंधित प्रश्न
No medium is required for transfer of heat by the process of ______.
Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.
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.
Select the correct alternative
Heat in a liquid is transferred by
State the direction of heat transfer by way of convection.
Explain which mode of heat transfer causes sea breezes and land breezes.
Match the items in column-I to the items in column-II
| Column-I | Column-II | ||
| 1. | Linear expansion | (a) | change in volume |
| 2. | Superficial expansion | (b) | hot body to cold body |
| 3. | Cubical expansion | (c) | 1.381 X 10-23 JK-1 |
| 4. | Cubical expansion | (d) | change in length |
| 5. | Boltzmann constant | (e) | change in area |
When ice changes into a liquid, it absorbs energy.
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.
