1.

Which of the following is not a source used in Mid Infrared Spectrophotometer?(a) Nernst glower(b) High pressure mercury arc lamp(c) Globar(d) Nichrome wireThe question was asked in an interview.My query is from Instrumentation of IR in division Colorimetry and Spectrometry of Analytical Instrumentation

Answer»

The correct answer is (b) HIGH pressure mercury arc lamp

To explain: High pressure mercury arc lamp is USED as the source for Far IR SPECTROPHOTOMETER. REST of the options are used as a source in Mid Infrared Spectrophotometer.



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