P3H4O1T1O1M3E1T1R1Y4
20 points
PHOTOMETRY is validvalid
the scientific measurement of light intensity [n PHOTOMETRIES]
that branch of science which treats of the measurement of the intensity of light [n PHOTOMETRIES]
the scientific measurement of light intensity [n PHOTOMETRIES]
that branch of science which treats of the measurement of the intensity of light [n PHOTOMETRIES]