1.

Which of the following is the wave number of near infrared spectrometer?(a) 4000 – 200 cm^-1(b) 200 – 10 cm^-1(c) 12500 – 4000 cm^-1(d) 50 – 1000 cm^-1I have been asked this question in class test.The query is from Instrumentation of IR in division Colorimetry and Spectrometry of Analytical Instrumentation

Answer»

The CORRECT answer is (C) 12500 – 4000 cm^-1

To elaborate: The wave number of near INFRARED SPECTROMETER ranges between 12500 – 4000. Wavenumber is the RECIPROCAL of wavelength.



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