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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
MCQ
रिकाम्या जागा भरा
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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
Match the following
| Column A | Column B |
| 1. mercury | 1. insulator |
| 2. wood | 2. water from 0°C to 4°C |
| 3. Aluminum | 3.absorbs |
| 4. contracts | 4.conductor |
| 5.black surface | 5. Thermometer |
Name the mode of transfer of heat in the following :
(a) solid,
(b) liquid,
(c) gas
(d) vacuum
Name the SI unit of heat.
Find the odd one out and give its explanation.
Which temperature segment is chosen when determining the unit of heat? Why?
The unit of heat and temperature are the same.
Which of the following substances will absorb more heat energy?
How can heat energy be generated?
Black color is a ______ absorber of heat.
Warm air is ______.
