Here's a breakdown:
* 400 nm is the boundary between the visible light spectrum and the ultraviolet (UV) spectrum.
* 10 nm marks the end of the UV spectrum and the beginning of the X-ray spectrum.
Therefore, wavelengths between 400 nm and 10 nm fall within the extreme ultraviolet range, which is further divided into:
* Near ultraviolet (NUV): 400 nm - 200 nm
* Far ultraviolet (FUV): 200 nm - 100 nm
* Extreme ultraviolet (EUV): 100 nm - 10 nm
These wavelengths are much shorter than visible light and have higher energy. They are used in various applications, including:
* Lithography: EUV radiation is used in semiconductor manufacturing to create patterns on silicon wafers.
* Astrophysics: EUV telescopes study hot, high-energy objects in space.
* Medical imaging: EUV radiation can be used for high-resolution imaging in medical applications.