Question : Infrared radiation is detected by which of the following?
Option 1: Pyrometer
Option 2: Nanometer
Option 3: Photometer
Option 4: Spectrometer
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Correct Answer: Photometer
Solution : The answer is a Photometer .
A Photometer is a device used to measure the strength of light or other forms of electromagnetic radiation, often their brightness or luminance. These instruments find widespread application across diverse fields. Photometers operate by capturing light through a sensor or detector and subsequently measuring its intensity.
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