Jawabanmu

2014-06-01T11:06:36+07:00
B. letak bayangan = 1/s' = 1/f - 1/s = 1/4 - 1/6 = 3-2/12 = 1/12
s' = 12/1 = 12 cm
a. m = s'/s= h'/h
= 12/6 = 2.
m = h'/h
h' = m.h = 2.1 = 2
2014-06-01T11:13:08+07:00
1/f=1/So + 1/S'
1/4=1/6+1/S'
1/4 -1/6 =1/S'
3/12-2/12=1/S'
1/12 =1/S'
12=S'
M=S'/So=12/6=2x
H'=MxH
  =2 x 1
 =2 cm
m=2
2 dapat dari mana ?
M=Pembesaran rumus pembesaran S'/So