Bolometer is used to measure

1.	Bolometer is used to measure
Answer» <html><body><p> Temperature</p><br/><br/><p>A bolometer is a device for <a href="https://interviewquestions.tuteehub.com/tag/measuring-1091969" style="font-weight:bold;" target="_blank" title="Click to know more about MEASURING">MEASURING</a> the power of incident electromagnetic radiation via the heating of a material with a temperature-dependent <a href="https://interviewquestions.tuteehub.com/tag/electrical-968148" style="font-weight:bold;" target="_blank" title="Click to know more about ELECTRICAL">ELECTRICAL</a> resistance. It was invented in 1878 by the American astronomer Samuel Pierpont Langley. A bolometer consists of an absorptive element, such as a thin layer of metal, connected to a <a href="https://interviewquestions.tuteehub.com/tag/thermal-706916" style="font-weight:bold;" target="_blank" title="Click to know more about THERMAL">THERMAL</a> reservoir (a body of <a href="https://interviewquestions.tuteehub.com/tag/constant-930172" style="font-weight:bold;" target="_blank" title="Click to know more about CONSTANT">CONSTANT</a> temperature) through a thermal link. The <a href="https://interviewquestions.tuteehub.com/tag/result-1187343" style="font-weight:bold;" target="_blank" title="Click to know more about RESULT">RESULT</a> is that any radiation impinging on the absorptive element raises its temperature above that of the reservoir — the greater the absorbed power, the higher the temperature.</p></body></html>

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