FT IR Spectroscopy What does the Michelson interferometer do? None of these Selectively filter certain wavelengths from a beam of I.R. radiation 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 None of these Selectively filter certain wavelengths from a beam of I.R. radiation 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 ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy An FT-IR instrument record a signal in the frequency domain time domain none of these both (a) and (b) frequency domain time domain none of these both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy The frequency of precession, the transition frequency and the Larmor frequency are same terms for the same frequency same terms for the different frequency different terms for the same frequency different terms for the different frequency same terms for the same frequency same terms for the different frequency different terms for the same frequency different terms for the different frequency 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 processional frequency of the nucleus increases The nucleus spins faster The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field None of these The processional frequency of the nucleus increases The nucleus spins faster The angle of precession flips so that the magnetic moment of the nucleus opposes the applied field ANSWER DOWNLOAD EXAMIANS APP
FT IR Spectroscopy In FT-NMR, how are nuclei excited? By radio-frequency radiation whose frequency is swept across a predetermined range By an intense pulse of radiation which contains a wide range of frequencies By an intense pressure None of these By radio-frequency radiation whose frequency is swept across a predetermined range By an intense pulse of radiation which contains a wide range of frequencies By an intense pressure None of these 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? 4 6 2 3 4 6 2 3 ANSWER DOWNLOAD EXAMIANS APP
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