Advertisements
Advertisements
प्रश्न
Stainless steel pans are usually provided with copper bottoms. The reason for this could be that ______.
विकल्प
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.
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 ______.
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
A hot metallic piece is placed in tap water contained in a bucket. Heat will flow from _______ to _________
Select the correct alternative
In the process of convection, heat travel
State the direction of heat transfer by way of convection.
Explain briefly the process of heat transfer by radiation.
The earth receives heat from the sun by ______.
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 a liquid boils, energy is absorbed.
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.
