FT IR Spectroscopy Which of the following is the basis of first dimension of separation for two-dimensional electrophoresis? Isoelectric point Folding Molecular mass Solubility Isoelectric point Folding Molecular mass Solubility ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy When radiation energy is absorbed by a spin 1/2 nucleus in a magnetic field, what happens? None of these The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field The processional frequency of the nucleus increases The nucleus spins faster None of these The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field The processional frequency of the nucleus increases The nucleus spins faster 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 - spin - spin relaxation Spin - lattice relaxation Spin - spin relaxation None of these Spin - spin - spin relaxation Spin - lattice relaxation Spin - spin relaxation ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy In scanning electron microscopy a specimen is fixed and then coated with thin layer of a heavy metal a specimen is fixed and then coated with transition metal a specimen is not fixed and then coated with thin layer of a heavy metal None of these a specimen is fixed and then coated with thin layer of a heavy metal a specimen is fixed and then coated with transition metal a specimen is not fixed and then coated with thin layer of a heavy metal None of these 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 Selectively filter certain wavelengths from a beam of I.R. radiation Modulate the I.R. signal at a lower frequency, so that it can be observed by a detector None of these Split a polychromatic beam of radiation into its component wavelengths Selectively filter certain wavelengths from a beam of I.R. radiation Modulate the I.R. signal at a lower frequency, so that it can be observed by a detector ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy How many possible orientations do spin 1/2 nuclei have when they are located in an applied magnetic field? 2 6 3 4 2 6 3 4 ANSWER DOWNLOAD EXAMIANS APP
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