Jawabanmu

2014-04-14T12:58:20+07:00
Jawabannya: 60cm → 1/s' = 1/F - 1/s = 1/20 - 1/30 = 3/60 - 2/60 = 1/60 s' = 60
*itu
Komentar sudah dihapus
Komentar sudah dihapus
ooiya :)
thx;;)
Jawaban paling cerdas!
2014-04-14T12:59:08+07:00
Si = s x f/ s-f   = 30 x 20 / 30-20   = 60/ 10   = 6