Rarama

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Na rarama e electromagnetic rarama ena loma ni dua na tiki ni electromagnetic karakarawa. Na vosa e dau tukuna na rarama, sai koya na tiki ni mo e rawa ni kilai mai na mata ni tamata. Na rarama e laurai e dau vakamacalataki me vaka na uabalavu ena 400 – 700 nanomita (NM), se 4.00 × 10 − 7 ki na 7.00 × 10 − 7 m, ena maliwa ni infrared (ena uabalavu balavu) kei na ultralokaloka (kei na kena e lekaleka uabalavu). Na uabalavu oqo e kena veigauna vakacava na rauta 430 – 750 terahertz (THz).

Triangular prism veiseyaki na kau ni rarama vulavula. Na uabalavu balavu (Damudamu) kei na kena e lekaleka na uabalavu (karakarawa) era veitawasei.
Na electromagnetic karakarawa, vata kei iwase laurai beterarama.