Input interpretation
![sodium | work function](../image_source/b4863e052d9d9a29f9a9ed6d7c3e8d62.png)
sodium | work function
Results
![2.36 eV](../image_source/f9b8b623a103c18e992f1933e745742f.png)
2.36 eV
![polycrystalline | 2.36 eV](../image_source/b3b77c2517e5b598fede2e9d86d87d7a.png)
polycrystalline | 2.36 eV
Threshold frequency
![5.706×10^14 Hz (hertz)](../image_source/b730911fc6a3ad2c13128dd13bb2c45e.png)
5.706×10^14 Hz (hertz)
Electromagnetic frequency range
![visible light](../image_source/26bbd8ed5b9a01f191fa3469d831a56f.png)
visible light
Unit conversion
![3.78×10^-19 J (joules)](../image_source/026b4efdeedc1a5b59f49ef43e1b3d7b.png)
3.78×10^-19 J (joules)
Comparisons as energy
![≈ (0.2 to 1.2) × energy of a covalent bond ( 3×10^-19 to 1×10^-18 J )](../image_source/190918dcbe8b9691b9af2070230b8533.png)
≈ (0.2 to 1.2) × energy of a covalent bond ( 3×10^-19 to 1×10^-18 J )
![≈ (1 to 1) × energy of a photon of green light ( 2.2 to 2.5 eV )](../image_source/783ecc5ef749b86462e3dd43e99ef619.png)
≈ (1 to 1) × energy of a photon of green light ( 2.2 to 2.5 eV )
![≈ (1.3 to 1.9) × energy of an infrared light photon ( 2×10^-19 to 3×10^-19 J )](../image_source/08f69754e2147a61174ce86f97485888.png)
≈ (1.3 to 1.9) × energy of an infrared light photon ( 2×10^-19 to 3×10^-19 J )
Corresponding quantities
![Electromagnetic wave frequency ν from E = hν: | 571 THz (terahertz) | 5.706×10^14 Hz (hertz)](../image_source/8509083019a8a2c165afda555f865208.png)
Electromagnetic wave frequency ν from E = hν: | 571 THz (terahertz) | 5.706×10^14 Hz (hertz)
![Thermodynamic temperature T from E = kT: | 27387 K (kelvins)](../image_source/e050439894ec8349f44e0a19d0dbb38f.png)
Thermodynamic temperature T from E = kT: | 27387 K (kelvins)
![Photon wavelength λ from E = hc/λ: | 525 nm (nanometers)](../image_source/9040d6d3b6cfd961bc1f77946b41241e.png)
Photon wavelength λ from E = hc/λ: | 525 nm (nanometers)
![Spectroscopic wavenumber ν^~ from ν^~ = E/(hc): | 1.903×10^6 m^(-1) (reciprocal meters) | 19035 cm^(-1) (reciprocal centimeters)](../image_source/d36881b32d958eb764815a019d282eb2.png)
Spectroscopic wavenumber ν^~ from ν^~ = E/(hc): | 1.903×10^6 m^(-1) (reciprocal meters) | 19035 cm^(-1) (reciprocal centimeters)