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Which of the following is not the advantage of Fourier Transform Spectrometers?

(a) Signal to noise ratio is high

(b) Information could be obtained on all frequencies

(c) Retrieval of data is possible

(d) Easy to maintain

This question was posed to me during an interview.

The query is from Fourier Transform Infra-red Spectrometers in section Colorimetry and Spectrometry of Analytical Instrumentation

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Right choice is (d) Easy to maintain

For explanation: The instrument is not easy to maintain and it is a disadvantage. The other disadvantage is that the cost is high.

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