Absorption of Light

Definition

Absorption of light refers to the process where matter (like a chemical compound) takes in photons from light and converts their energy into other forms, often heat.

Related terms

Photon:

A photon is a particle representing a quantum of light or other electromagnetic radiation. It carries energy proportional to the radiation frequency but has zero rest mass.

Spectrophotometry:

This is an analytical method used to measure how much a chemical substance absorbs light by measuring the intensity of light as a beam of light passes through sample solution.

Absorbance:

This is the measure of the quantity of light absorbed by a solution.