Question

How will you show the presence of infrared rays in the electromagnetic spectrum?
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Answer 1

Answer:

Within the electromagnetic spectrum, infrared waves occur at frequencies above those of microwaves and just below those of red visible light, hence the name "infrared." Waves of infrared radiation are longer than those of visible light, according to the California Institute of Technology (Caltech).

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Answer 2

Answer:

infrared (SWIR) spectrums, we measure the reflectivity of objects. Thus, using a specific lighting working in an active infrared spectrum, we can capture the rays reflected by the object and produce its reflectrogram