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Mr. Dubey • 51.17K Points
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Q.) 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-1
Correct answer : Option (C) - 12500 – 4000 cm-1

Explanation:
 the wave number of near infrared spectrometer ranges between 12500 – 4000. wavenumber is the reciprocal of wavelength.

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