In a substancea) the molar absorption coefficient does not depend on the wavelengthb) the molar absorption coefficient does depend on the frequencyc) the natural width of a band determines the width of the spectral lined) the natural broadening of the band is reduced by a monochromator

A Beer’s law plot is prepared by plotting absorbance vs molar concentration of the absorbing species. What are the units of the slope? What are the units of the y-intercept?

What are the advantages to using a near-IR excitation source, such as a diode laser (830 nm), instead of a source with a shorter wavelength, such as a krypton-ion laser (530.9 nm)? the ratio of anti-Stokes to Stokes intensities increases fluorescence is less intense or nonexistent can operate at higher powers without causing photodecomposition the amount of Rayleigh scattering decreases the Raman lines are more intense

What are the conditions for a molecule to be Raman active, IR active.