Jawabanmu

2014-05-02T15:12:34+07:00
I/f = 1/s + 1/s'
1/15 = 1/10 - 1/s'
1/s' = 1/10-1/15
1/s' = 15/150 - 10/150
1/s' = 5/150
s' = 30

m = s'/s = 30/10 = 3
Jawaban paling cerdas!
2014-05-02T15:22:05+07:00
Karena benda berada dibelakang maka So= 10cm  F= 15 cm 
maka Si = 1/15 +1/10 =5/30 = 30/5 = 6 cm 
perbesaran bayangan = si/so = 6/10 = 0,6 kali
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