
sifat-sifat cahaya
Presentation
•
Biology
•
4th Grade
•
Hard
Ramayanti Ramayanti
FREE Resource
10 Slides • 0 Questions
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SELAMAT DATANG
by Ramayanti Ramayanti
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SELAMAT DATANG
by Ramayanti Ramayanti
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Cahaya adalah Gelombang elektromagnetik yang dipancarkan oleh suatu benda dan dapat merambat dengan kecepatan tinggi, yakni 3.000 km/s.
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Cahaya memiliki beberapa sifat yaitu
1. cahaya merambat lurus
2. cahaya dapat dipantulkan
3. cahaya dapat menembus benda bening
4. cahaya dapat dibiaskan
5. cahaya dapat diuraikan menjadi beberapa warna
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Berdasarkan dapat atau tudaknya ditembus cahaya, benda dapat dikelompokkan atas :
1. Benda gelap/tidak tembus cahaya yang dapat memantulkan semua benda yang mengenainya.
2. Benda bening/tembus cahaya yang mampu meneruskan semua cahaya yang mengenainya
3. Benda transparan/keruh/buram yang dapat meneruskan sebagian cahaya dan menyebarkan sebagian cahaya lainnya.
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TERIMAKASIH
SELAMAT DATANG
by Ramayanti Ramayanti
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