Jawabanmu

2014-06-03T07:48:02+07:00
A) 1/f = 1/s + 1/s'
1/6 = 1/18 + 1/s'
1/6 - 1/18 = 1/s'
3/18 - 1/18 = 1/s'
2/18 = 1/s'
1/9 = 1/s'
s' = 9 cm
b) M = s'/s = 9/18 = 1/2 x (diperkecil)
c) M = h'/h
1/2 = h'/5
2h' = 5
h' = 2,5 cm