has useful range of radiation from 2.5 to 15 microns
uses Bolo meter as one of the detectors
is unsuitable for analysis of organic gases
is unsuitable for analysis of mixture of metals
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The Correct Option isB
Solution and Explanation
A bolometer is a sensitive thermal detector used in IR spectroscopy to detect infrared radiation by measuring temperature changes. IR spectroscopy is suitable for analyzing organic compounds, as they absorb IR radiation at characteristic frequencies.