
Gelombang Elektromagnetik
Presentation
•
Physics
•
11th Grade
•
Hard
Antonia Juniar
Used 3+ times
FREE Resource
7 Slides • 0 Questions
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Pada masa pandemi disarankan berjemur 10 sampai 20 menit pada pagi hari di lingkungan sekitar, tetapi dipantai, banyak orang berjemur berjam-jam. Menurut kalian, sehatkah kegiatan berjemur berjam-jam tersebut? Kemukakan alasanmu!
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Selain bermanfaat bagi kulit dan tubuh, banyak sekali iklan body lotion/suncream di Televisi ataupun media online yang menyatakan melindungi kulit dari sinar matahari seperti iklan di bawah.
https://www.bmkg.go.id/cuaca/indeks-uv.bmkg
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Gelombang yang terjadi karena adanya perubahan medan magnet dan medan listrik yang saling tegak lurus serta keduanya tegak lurus pula dengan arah perambatannya.
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Dapat merambat dalam ruang hampa.
Merupakan gelombang transversal (arah getar tegak lurus arah rambat), jadi dapat mengalami polarisasi.
Dapat mengalami refleksi, refraksi, interferensi dan difraksi.
Tidak dibelokkan dalam medan listrik maupun medan magnet
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kombinasi medan listrik dan medan magnet yang berosilasi saling tegak lurus dan merambat lewat ruang dan membawa energi dari suatu tempat ke tempat lain.
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