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- cermin
cermin CEKUNG
f = 8 cm
s' = 6 cm (nyata)
s = __ ?
1/s + 1/s' = 1/f
1/s + 1/6 = 1/8
1/s = 1/8 - 1/6
1/s = 3/24 - 4/24
1/s = -1/24
s = - 24 cm (benda maya) ←