FT IR Spectroscopy Why is it advantageous to record many FID signals from the same sample and then add them together? None of these To remove inaccuracies caused by fluctuations in the applied magnetic field To ensure that all target nuclei in the sample have been excited To increase sensitivity None of these To remove inaccuracies caused by fluctuations in the applied magnetic field To ensure that all target nuclei in the sample have been excited To increase sensitivity ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy What is the name given to the relaxation process due to an interaction between an excited nucleus and the magnetic fields caused by nuclei in molecules moving around in the sample? None of these Spin - lattice relaxation Spin - spin relaxation Spin - spin - spin relaxation None of these Spin - lattice relaxation Spin - spin relaxation Spin - spin - spin relaxation ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy In scanning electron microscopy None of these a specimen is not fixed and then coated with thin layer of a heavy metal a specimen is fixed and then coated with transition metal a specimen is fixed and then coated with thin layer of a heavy metal None of these a specimen is not fixed and then coated with thin layer of a heavy metal a specimen is fixed and then coated with transition metal a specimen is fixed and then coated with thin layer of a heavy metal ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy An FT-IR instrument record a signal in the time domain frequency domain both (a) and (b) none of these time domain frequency domain both (a) and (b) none of these ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy Negative staining is a technique used in light microscopy gel electrophoresis immunocytochemistry electron microscopy light microscopy gel electrophoresis immunocytochemistry electron microscopy ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy What does the Michelson interferometer do? None of these Split a polychromatic beam of radiation into its component wavelengths Modulate the I.R. signal at a lower frequency, so that it can be observed by a detector Selectively filter certain wavelengths from a beam of I.R. radiation None of these Split a polychromatic beam of radiation into its component wavelengths Modulate the I.R. signal at a lower frequency, so that it can be observed by a detector Selectively filter certain wavelengths from a beam of I.R. radiation ANSWER DOWNLOAD EXAMIANS APP
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