How Does a Bar Code Reader Work

question 50

Short Answer

How does a bar code reader work?

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Definitions:

Polymer

Large molecules made from repeating subunits called monomers, utilized in various applications from plastics to DNA.

Reaction

A process in which substances interact to form new substances with different chemical and physical properties.

Monomer Unit

A small molecule that can react with similar molecules to form a polymer, serving as the basic building block of polymers.

Poly(Lactic Acid)

A biodegradable and bioactive thermoplastic derived from renewable resources, such as corn starch or sugarcane.