Final answer:
Spectroscopy measurements can indeed be made in both percent transmittance (%T) and absorbance (A), which is true. These two measurements are related through a mathematical formula and provide important data for analyzing the interactions of electromagnetic radiation with materials.
Step-by-step explanation:
The answer to whether spectroscopy measurements can be made in either percent transmittance (%T) or absorbance (A) is true. Spectroscopy involves studying the interaction between electromagnetic radiation and matter, including the absorption and emission of radiation.
This interaction is quantified in terms of percent transmittance or absorbance. Percent transmittance indicates how much light passes through a sample, while absorbance is a measure of how much light is absorbed by the sample. To express an absorbance of A = 1.0 in terms of percent transmittance, one would use the mathematical relationship %T = 10-A × 100, which, for A = 1.0, gives %T = 10%. This conversion is integral for interpreting spectra in fields ranging from biology to material science, as knowing both values can provide insights into the concentration of species within a sample and the nature of the absorbing substances.