Infrared rays can be detected by .......

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(A) Infrared rays are electromagnetic waves with wavelengths longer than visible light. They are commonly detected using a spectrometer,which can anal

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Spectrometer

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(A) Infrared rays are electromagnetic waves with wavelengths longer than visible light. They are commonly detected using a spectrometer,which can analyze the spectral distribution of radiation. Thermopiles,bolometers,and infrared photographic film are also used for detection,but among the given options,a spectrometer is the correct instrument for analyzing and detecting these rays.

List-$I$	List-$II$
$(a)$ Ultraviolet rays	$(i)$ Study crystal structure
$(b)$ Microwaves	$(ii)$ Greenhouse effect
$(c)$ Infrared waves	$(iii)$ Sterilizing surgical instruments
$(d)$ $X$-rays	$(iv)$ Radar system

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