Question

Discuss the radiometric and photometric measurements of light mentioning the SI units and description for atleast 5 perimeters?​

Answer 1

Explanation:

. The biometric technologies measure a variety of anatomical, physiological and behavioural characteristics, to distinguish individual and to check that the image or signal presented is that of a real face, iris, fingerprint, palm and voice.

Answer 2

Radiometric measure a variety of anatomical, physiological and behavioural characteristics, to distinguish individual and to check that the image or signal presented is that of a real face, iris, fingerprint, palm and voice. Measurements of a living entity will vary and highly dependent on environmental conditions and user behaviour.

• Si unit - Radiant intensity Watt or steradian Candela

Photometric measurement, or photometry, is a technique that can be used to measure the concentration of organic and inorganic compounds in solution by determining the absorbance of specific wavelengths of light. ... Photometry instruments have many laboratory and practical applications.

• Si unit -Lumen