Discussion :: Physics
- Which of the following devices can be used to detect radiant heat ?
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A.
Liquid thermometer |
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B.
Six's maximum and minimum thermometer |
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C.
Constant volume air thermometer |
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D.
Thermopile |
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Answer : Option D
Explanation :
Based on the thermoelectric effect, the thermopile can be used as a heat sensor to measure thermal radiation. A thermopile is made of thermocouple junction pairs connected electrically in series. Thermocouples near the ground measures radiant energy.
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