Chemistry
Beer-Lambert Law
Quick fact
The Beer-Lambert law allows scientists to determine the concentration of a solution by measuring how much light it absorbs.
Why this is interesting
Have you ever wondered why a cup of tea looks darker when you add more tea leaves? It’s all about how light interacts with the substance.
Read the full explanation
Understanding Beer-Lambert Law
Imagine shining a flashlight through a glass of water. If you add more dye, the light gets blocked more. The Beer-Lambert Law explains that the amount of light absorbed depends on both the concentration of the substance and the distance the light travels through it.
A deeper explanation
The Beer-Lambert law states that the absorbance of light by a material is directly proportional to its concentration and the path length of the light through the sample. This principle underpins techniques like spectrophotometry, which are used in labs worldwide for chemical analysis.