Input interpretation
water | UV cutoff wavelength
Result
191 nm (nanometers)
Unit conversions
0.191 µm (micrometers)
1.91×10^-7 meters
7.52×10^-6 inches
Comparison as wavelength
≈ 2.1 × Rydberg wavelength ( ≈ 9.1×10^-8 m )
Electromagnetic frequency range
FUV (far ultraviolet)
Corresponding quantities
Energy E of a photon in a vacuum from E = hc/λ: | 6.5 eV (electronvolts)
Angular wavelength ƛ from ƛ = λ/(2π): | 3×10^-8 meters
Frequency ν of a photon in a vacuum from ν = c/λ: | 1.57×10^15 Hz (hertz)
Spectroscopic wavenumber ν^~ from ν^~ = 1/λ: | 5.236×10^6 m^(-1) (reciprocal meters)
Wavenumber k from k = 2π/λ: | 3.29×10^7 m^(-1) (reciprocal meters)
Frequency ν of sound from ν = v/λ: | 1.8 GHz (gigahertz) | (assuming speed of sound ≈ 340.27 m/s)