Input interpretation
thorium | work function
Results
3.4 eV
polycrystalline | 3.4 eV
Threshold frequency
8.221×10^14 Hz (hertz)
Electromagnetic frequency range
NUV (near ultraviolet) | UVA
Unit conversion
5.45×10^-19 J (joules)
Comparisons as energy
≈ ( 0.25 ≈ 1/4 ) × Rydberg energy ( ≈ 2.2×10^-18 J )
≈ (0.4 to 1.8) × energy of a covalent bond ( 3×10^-19 to 1×10^-18 J )
≈ 1.5 × energy of a photon of green light ( 2.2 to 2.5 eV )
Corresponding quantities
Electromagnetic wave frequency ν from E = hν: | 822 THz (terahertz) | 8.221×10^14 Hz (hertz)
Thermodynamic temperature T from E = kT: | 39455 K (kelvins)
Photon wavelength λ from E = hc/λ: | 365 nm (nanometers)
Spectroscopic wavenumber ν^~ from ν^~ = E/(hc): | 2.742×10^6 m^(-1) (reciprocal meters) | 27423 cm^(-1) (reciprocal centimeters)