Physics
Absorption Spectroscopy
Quick fact
Absorption spectroscopy is used in everything from medical testing to environmental monitoring by analyzing the unique absorption patterns of different substances.
Why this is interesting
Have you ever wondered how scientists can 'see' the invisible? By studying how light is absorbed, they unlock secrets about molecules that are otherwise hidden.
Read the full explanation
Understanding Absorption Spectroscopy
When light passes through a material, some wavelengths are absorbed. This happens because the energy of the light matches the energy needed for molecules to change their state—like vibrating or rotating. The pattern of absorption tells us what kind of molecules are present.
A deeper explanation
Absorption spectroscopy works by shining light through a sample and measuring which wavelengths are absorbed. When photons hit molecules, they can excite electrons or cause vibrations if the energy matches specific energy levels. This results in unique absorption patterns that act like molecular fingerprints, allowing scientists to identify substances and study their properties.