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Ronan Asked :

21-11-2021 Pneumotachometers

Q. The recorder used with spectrophotometers has _____ wavelength scanning speeds.

A. one
B. two
C. three
D. four


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Dapzoi Verified
Commented on 2021-11-21 12:26:04 (IST)
Answer: D

Explanation: The recorder used with spectrophotometers have four wavelength scanning speeds (100, 50, 20 and 5 nm/mm) and seven chart speeds (10, 5, 2, 1, 0.5, 0.2 and 0.1 inch/mm). It has a sensitivity of 100 mV absorbance units or 100 mV/100% T.