Infrared radiations are detected by
(A) spectometer
(B) pyrometer
(C) nanometer
(D) photometer
Correct Answer : spectometer
Explanation : An infrared detector is a detector that reacts to infrared radiation. The two main types of detectors are thermal and photonic. Bolometers and microbolometers are based on changes in resistance. Spectrometers and pyroelectric detectors are the most widespread.
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