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Alat Optik
Kelas IX

PP = 50 cm
Sn = 30 cm

P = _ ?

P = 100/Sn - 100/PP
P = 100/30 - 100/50
P = 10/3 - 10/5
P = 50/15 - 30/15
P = 20/15
P = 4/3 Dioptri
[D]