Input interpretation
yttrium | work function
Results
3.1 eV
polycrystalline | 3.1 eV
Threshold frequency
7.496×10^14 Hz (hertz)
Electromagnetic frequency range
visible light | NUV (near ultraviolet) | UVA
Unit conversion
4.97×10^-19 J (joules)
Comparisons as energy
≈ ( 0.23 ≈ 1/4 ) × Rydberg energy ( ≈ 2.2×10^-18 J )
≈ (0.3 to 1.6) × energy of a covalent bond ( 3×10^-19 to 1×10^-18 J )
≈ (1.2 to 1.4) × energy of a photon of green light ( 2.2 to 2.5 eV )
Corresponding quantities
Electromagnetic wave frequency ν from E = hν: | 750 THz (terahertz) | 7.496×10^14 Hz (hertz)
Thermodynamic temperature T from E = kT: | 35974 K (kelvins)
Photon wavelength λ from E = hc/λ: | 400 nm (nanometers)
Spectroscopic wavenumber ν^~ from ν^~ = E/(hc): | 2.5×10^6 m^(-1) (reciprocal meters) | 25003 cm^(-1) (reciprocal centimeters)