Spectroscopy Which of the following relationships between absorbance and %transmittance is incorrect? A = log10 100 / %T A = 2 - log10 %T All are correct A = log10 1 / T A = log10 100 / %T A = 2 - log10 %T All are correct A = log10 1 / T ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Why is it generally preferable to use absorbance as a measure of absorption rather than % transmittance? Because %T is dependant on the power of the incident radiation Because %T cannot be measured as accurately as absorbance Because absorbance is proportional to the concentration of the analyte, whereas %T is not None of these Because %T is dependant on the power of the incident radiation Because %T cannot be measured as accurately as absorbance Because absorbance is proportional to the concentration of the analyte, whereas %T is not None of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following is not an IR vibrational mode? Scissoring Rocking Rolling Stretching Scissoring Rocking Rolling Stretching ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following components of a monochromator is the dispersing element? The entrance slit The collimating lens None of these The diffraction grating The entrance slit The collimating lens None of these The diffraction grating ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy In the past, IR spectra had to be aquired one wavelength at a time, which took a long time. Today quick spectra is due to the absence of broad spectrum of wavelenth light is faster today that it used to be the Fourier Transfer Algorithm allows us to scan all frequencies at once None of these absence of broad spectrum of wavelenth light is faster today that it used to be the Fourier Transfer Algorithm allows us to scan all frequencies at once None of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following will oscillate the fastest? A large mass on a weak spring A large mass on a stiff spring A small mass on a stiff spring A small mass on a weak spring A large mass on a weak spring A large mass on a stiff spring A small mass on a stiff spring A small mass on a weak spring ANSWER DOWNLOAD EXAMIANS APP
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