Input interpretation
![barium | work function](../image_source/a3a331042bbbc318308d49c31feb9986.png)
barium | work function
Results
![2.52 eV](../image_source/6a8a5772f3b7c967720df1572d455b64.png)
2.52 eV
![polycrystalline | 2.52 eV](../image_source/ed2c27b083d07982441d51fc3deb9461.png)
polycrystalline | 2.52 eV
Threshold frequency
![6.093×10^14 Hz (hertz)](../image_source/869d55cbcedddb779e4ed3b8586699d5.png)
6.093×10^14 Hz (hertz)
Electromagnetic frequency range
![visible light](../image_source/b7d4309dc35a2b747b5545a3a20599b8.png)
visible light
Unit conversion
![4.04×10^-19 J (joules)](../image_source/c3d56772ab9fef238379ed23e7bc495b.png)
4.04×10^-19 J (joules)
Comparisons as energy
![≈ (0.3 to 1.3) × energy of a covalent bond ( 3×10^-19 to 1×10^-18 J )](../image_source/78ff6f4b7889f2558975fbeac4dd96b7.png)
≈ (0.3 to 1.3) × energy of a covalent bond ( 3×10^-19 to 1×10^-18 J )
![≈ (1 to 1.1) × energy of a photon of green light ( 2.2 to 2.5 eV )](../image_source/478e3ee5f539801d62a12e6bd0a453b5.png)
≈ (1 to 1.1) × energy of a photon of green light ( 2.2 to 2.5 eV )
![≈ (1.3 to 2) × energy of an infrared light photon ( 2×10^-19 to 3×10^-19 J )](../image_source/7368377762bc38adc972641dd4bf78b9.png)
≈ (1.3 to 2) × energy of an infrared light photon ( 2×10^-19 to 3×10^-19 J )
Corresponding quantities
![Electromagnetic wave frequency ν from E = hν: | 609 THz (terahertz) | 6.093×10^14 Hz (hertz)](../image_source/266cf315b25d1cf7969218b3df6b312e.png)
Electromagnetic wave frequency ν from E = hν: | 609 THz (terahertz) | 6.093×10^14 Hz (hertz)
![Thermodynamic temperature T from E = kT: | 29243 K (kelvins)](../image_source/5a3f20cda973133a6dc1dd3121024111.png)
Thermodynamic temperature T from E = kT: | 29243 K (kelvins)
![Photon wavelength λ from E = hc/λ: | 492 nm (nanometers)](../image_source/b5abadf0b8dd6c70ba92a53b56c85ba3.png)
Photon wavelength λ from E = hc/λ: | 492 nm (nanometers)
![Spectroscopic wavenumber ν^~ from ν^~ = E/(hc): | 2.033×10^6 m^(-1) (reciprocal meters) | 20325 cm^(-1) (reciprocal centimeters)](../image_source/46572108d6bd69584a6aa0c9e386f99a.png)
Spectroscopic wavenumber ν^~ from ν^~ = E/(hc): | 2.033×10^6 m^(-1) (reciprocal meters) | 20325 cm^(-1) (reciprocal centimeters)