🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsРусскийहिन्दी中文EntityQ847339· pop 13· linked from 15 articlesCauchy's equationempirical relationship between the refractive index and wavelengthConnectionsopticsEntitywavelengthEntityCategoriesAugustin-Louis CauchyMaterial dispersion modelsOptics