•Cermin cembung
M = s'/s
2 = s'/20
2/1 = s'/20
s' = -40cm
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2 = s’ / 20
s’ = -40 cm
Tanda minus menunjukan bayangan maya dan tegak
•Cermin cembung
Diketahui:
Ditanya:
Jawaban
M = s'/s
2 = s'/20
2/1 = s'/20
s' = -40cm