December 2018 1 9 Report
Titik fokus sebuah lensa cembung adalah 35 cm, kekuatan lensanya adalah.....
A.5,25 dioptri
B.4,75 dioptri
C.3,86 dioptri
D.2,86 dioptri
E.1,86 dioptri
Mohon dijawab pakai caranya.....

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