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1/s' = 1/f - 1/s
1/s' = 1/6 -1/10
1/s' = 5/30 - 3/30
1/s' = 2/30
s' = 15
jd sifat bayangan itu nyata, tegak diperbesar.
ingat untuk cermin cekung berlaku
NOMOR RUANG BENDA + NOMOR RUANG BAYANGAN = 5
Jadi sifat bayangan bisa mudah diketahui.
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