# Cauchy's equation

> empirical relationship between the refractive index and wavelength

**Wikidata**: [Q847339](https://www.wikidata.org/wiki/Q847339)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Cauchy's_equation)  
**Source**: https://4ort.xyz/entity/cauchy-s-equation


## References

1. Freebase Data Dumps. 2013
2. Quora