Infrared (IR) radiation is a segment of the electromagnetic spectrum with wavelengths from approximately 700 nanometres (nm) to 1 millimetre (mm).

Wavelength Characteristics:

  • IR wavelengths are longer than those of visible light but shorter than radio waves.

General Understanding:

  • Commonly known as infrared, this region lies just beyond the visible spectrum of light.

Application:

  • Infrared radiation plays a crucial role in applications such as thermal imaging, remote sensing, and spectroscopy due to its unique wavelength range that interacts differently with various materials.