Graduate Pharmacy Aptitude Test (GPAT) 2011 Solved Paper

Question : 137 of 150

Marks: +1, -0

. In FT-IR instruments Michaelson interferometer is used in place of grating. The function of the interferometer is to act as a modulator'. What do you understand by this statement?

The function of the interferometer is to act as a monochromator
The function of the interferometer is to convert high frequency radiations into low ones
The function of the interferometer is to convert low frequency radiations into high ones
The function of the interferometer is to convert frequency domain spectra into time domain spectra

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