2. The following data were obtained for a voltage measurement, in mV, on a noisy system: 1.27, 1.54, 1.45, 1.63, 1.68, 1.39, 1.40. Assuming the noise is random, and s-0.145, what is the signal-to-noise ratio? A) B) C) 0.098 1.48 10.2 0.228

2. The following data were obtained for a voltage measurement, in mV, on a noisy system: 1.27, 1.54, 1.45, 1.63, 1.68, 1.39, 1.40. Assuming the noise is random, and s-0.145, what is the signal-to-noise ratio? A) B) C) 0.098 1.48 10.2 0.228

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter5: Signals And Noise

Section: Chapter Questions

Problem 5.8QAP

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UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.

Question

2. The following data were obtained for a voltage measurement, in mV, on a noisy system: 1.27,
1.54, 1.45, 1.63, 1.68, 1.39, 1.40. Assuming the noise is random, and s-0.145, what is the
signal-to-noise ratio?
A)
B)
C)
D)
0.098
1.48
10.2
0.228

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