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Galombang elektromagnetik dapek digambakan sabagai duo buah galombang nan merambek sacaro transversal pado duo buah bidang tagak luruih iyolah medan magnetik dan medan listrik. Marambeknyo galombang magnet akan mandorong galombang listrik, dan sabaliknyo, katiko marambek, galombang listrik akan mandorong galombang magnet. Diagram di ateh manunjuakkan galombang cahayo nan marambek dari kidagh ka suok dangan medan listrik pado bidang vertikal dan medan magnet pado bidang horizontal.

Titiak sirah bagarak dangan laju fase (rato-rato), titiak hijau dangan laju kalompok.

Cahayo adolah energi babantuak galombang elektromagnetik nan tacoliak dek mato dangan panjang galombang sakitar 380–750 nm.^[1] Pado bando langik bintang dalam palajaran fisika, cahayo adolah radiasi elektromagnetik, baiak dangan panjang galombang kasatmato maupun nan indak.^[2]^[3] Dek biktu, cahayo iyolah paket partikel nan disabuik foton. Kaduo definisi tasabuik marupokan sifaik nan ditunjukkan cahayo sacaro basamoan sahinggo disabuik "dualisme galombang-partikel". Paket cahayo nan disabuik spektrum kudian diparsepsikan sacaro visual dek indra panglihatan sabagai warno. Bidang studi cahayo dikana dangan sabutan optika, marupokan area riset nan pantiang pado fisika modern.

Studi manganai cahayo bamulo dangan adonyo era optika klasik nan mampalajari besaran optik ajak: intensitas, frekuensi atau panjang galombang, polarisasi dan fase cahayo. Sifaik-sifaik cahayo dan interaksinyo tahadok sakitar dilakukan dangan pandekatan paraksial geometris ajak refleksi dan refraksi, dan pandekatan sifaik optik fisisnyo iyolah: interferensi, difraksi, dispersi, polarisasi. Masiang-masiang studi optika klasik iko disabuik dangan optika geometris (en:geometrical optics) dan optika fisis (en:physical optics).

Teori

Rujuakan

↑ Karen E. Kalumuck (2000). Human body explorations: hands-on investigates of what makes us tick. Kendall Hunt. p. 74. ISBN 9780787261535. http://books.google.com/books?id=aPgCYd3ZBUgC&pg=PA74&dq=380+750+visible+wavelengths&as_brr=3&ei=L2N-Sq_bNZPelQSdjbykCg#v=onepage&q=380%20750%20visible%20wavelengths&f=false.
↑ Gregory Hallock Smith (2006). Camera lenses: from box camera to digital. SPIE Press. p. 4. ISBN 9780819460936. http://books.google.com/books?id=6mb0C0cFCEYC&pg=PA4&dq=light+all-wavelengths&lr=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&as_brr=0&ei=Cg99SqDDHKCQkASMp-yRCg#v=onepage&q=light%20all-wavelengths&f=false.
↑ Narinder Kumar (2008). Comprehensive Physics XII. Laxmi Publications. p. 1416. ISBN 9788170085928. http://books.google.com/books?id=IryMtwHHngIC&pg=PA1416&dq=term-light+wavelengths+intitle:physics&lr=&as_brr=3&ei=kBN9StSIHZ3YkQTOr_ihCg#v=onepage&q=&f=false.

Pautan lua

Media tantang cahayo di Wikimedia Commons
Definisi kamuih cahayo di Wiktionary
Kutipan tantang cahayo di Wikiquote

[1] Karen E. Kalumuck (2000). Human body explorations: hands-on investigates of what makes us tick. Kendall Hunt. p. 74. ISBN 9780787261535. http://books.google.com/books?id=aPgCYd3ZBUgC&pg=PA74&dq=380+750+visible+wavelengths&as_brr=3&ei=L2N-Sq_bNZPelQSdjbykCg#v=onepage&q=380%20750%20visible%20wavelengths&f=false.

[2] Gregory Hallock Smith (2006). Camera lenses: from box camera to digital. SPIE Press. p. 4. ISBN 9780819460936. http://books.google.com/books?id=6mb0C0cFCEYC&pg=PA4&dq=light+all-wavelengths&lr=&as_drrb_is=q&as_minm_is=0&as_miny_is=&as_maxm_is=0&as_maxy_is=&as_brr=0&ei=Cg99SqDDHKCQkASMp-yRCg#v=onepage&q=light%20all-wavelengths&f=false.

[3] Narinder Kumar (2008). Comprehensive Physics XII. Laxmi Publications. p. 1416. ISBN 9788170085928. http://books.google.com/books?id=IryMtwHHngIC&pg=PA1416&dq=term-light+wavelengths+intitle:physics&lr=&as_brr=3&ei=kBN9StSIHZ3YkQTOr_ihCg#v=onepage&q=&f=false.

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