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.
photometer read only by light filters which can measure only the normal light waves between the ultravilot and the infrared light waves and cannot read the apsorbance of ultravilot and infrared waves. The photometer just measures the intensity of light. Think of a solar cell hooked up to a voltmeter.