Definition of REPROACH. 1. : an expression of rebuke or disapproval. 2. 3. a: a cause or occasion of blame, discredit, or disgrace b: discredit, disgrace. 4.
What is the difference between a spectrophotometer and a photometer? A photometer simply measure the total lumens of a light source, while a spectrophotometer will measure a whole spectral of that same light source.
A spectrometer is used in spectroscopy for producing spectral lines and measuring their wavelengths and intensities.Spectrometer is a term that is applied to instruments that operate over a very wide range of wavelengths, from gamma rays and X-rays into the far infrared.If the instrument is designed to measure the spectrum in absolute units rather than relative units, then it is typically called a spectrophotometer.pectrometers are used in many fields. For example, they are used in astronomy to analyze the radiation from astronomical objects and deduce chemical composition. The spectrometer uses a prism or a grating to spread the light from a distant object into a spectrum.