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.
spectrophotometer have a wide spectrum of filters for measuring the absorbance of all light waves eg350 nm to75o nm or more so that it can measure the absorbance of coloured light waves coulourless light infra