October 2018 2 11 Report
Tolong banget,yang ngerti kasih tau ya..,
sebuah benda berada pada jarak 20 cm didepan cermin cembung.yang memiliki jarak fokus 30 cm. tentukan :
a.jarak bayangan.
b.perbesaran bayangan.
c.tinggi benda "jika tinggi bayangan 5 cm".
d.jari-jari lensa.
e.kekuatan lensa.
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