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प्रश्न
A device in which the loss of heat due to conduction, convection and radiation is minimized is ______.
पर्याय
solar cell
solar cooker
thermometer
thermos flask
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उत्तर
A device in which the loss of heat due to conduction, convection and radiation is minimized is thermos flask.
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संबंधित प्रश्न
Fill in the blank
Heat is a form of _______.
What will absorb heat?
Iron griddle (tava)
What will absorb heat?
Water
What will absorb heat?
Plastic plate
Calorie is the unit of ______.
How can heat energy be generated?
Assertion: Small gaps left between railway lines.
Reason: It allows for the contraction of rails during summer.
Arrange the following in order of decreasing the expansion of heating: Steel, milk, air.
On a cold day, it is hard to open the lid of a tight container. But when you gently heat the neck you can easily open the lid. why?
Match the following:
| Column A | Column B | ||
| 1. | Heat | a. | Heat gained or lost in the change of state without any change in temperature |
| 2. | m × L. | b. | Heat gained or lost when there is no change of state |
| 3. | Temperature | c. | Form of energy |
| 4. | m × s × t | d. | SI unit of specific latent heat |
| 5. | J/Kg | e. | degree of hotness or coldness |
