11th December 2019

who
17

What is the range of UV?

Emissions from the sun include visible light, heat and UV radiation. The UV region covers the wavelength range 100-400 nm and is divided into three bands: UVA (315-400 nm) UVB (280-315 nm)

Likewise, people ask, what are the wavelengths of light that are in the ultraviolet range?

Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

What is the basic principle of UV Visible Spectroscopy?

Principle of ultraviolet–visible absorption. Molecules containing π-electrons or non-bonding electrons (n-electrons) can absorb energy in the form of ultraviolet or visible light to excite these electrons to higher anti-bonding molecular orbitals.

What does UV VIS spectroscopy measure?

The instrument used in ultraviolet–visible spectroscopy is called a UV/Vis spectrophotometer. It measures the intensity of light passing through a sample ( ), and compares it to the intensity of light before it passes through the sample ( ).