December 2018 2 19 Report
Sebuah lensa terletak 30cm di depan lensa cembung berjari-jari 40cm , bayangan yg terbentuk adalah ...
a.6ocm di depan lensa
b.60cm di belakang lensa
c.12cm didepan lensa
d.12cm debelakang lensa
tolong bantu yha kak
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