Aspectrophotometer measures the transmittance or the absorbance, or both, of a particular wavelength of light after it has passed through a liquid sample. before the transmittance or absorbance of the sample is measured, a cuvette filled only with solvent, called the blank, is placed in the spectrophotometer a measured. select the reason that, after the blank is measured, the cuvette must be placed in the spectrophotometer in the same orientation each time that it is used. the transmittance of the cuvette must be measured in the same place each time. the cuvette will only fit into the spectrophotometer in one orientation. the transmittance of the liquid must be measured in the same place each time. the spectrophotometer will break if the cuvette position is changed during the experiment.