Jawabanmu

2014-05-28T19:52:16+07:00
Cermin cekung bersifat positif
dik : s = 50 cm
       f = 100 cm
       h = 75 cm
dit :
1) s' = 1/ f - 1/ s
       = 1/ 100 - 1/ 50
       = 1 / 100 - 2 / 100
       = -1 / 100
       = 100 cm
2) M = s' / s
       = 100 / 50
       = 2 kali
3 ) h' = 1/f - 1/h
       
maaf yg no 3 gak tau lagi
semoga membantu
aku bantu no. 3 ya, hehehe
3) M = h'/h
2 = h'/75
75 x 2 = h'
h' = 150 cm
sekian
iya, thanks sdh melengkapi
samasamaa
2014-05-28T21:22:25+07:00
M= |h'/h|
2= |h'/75|
h'= 2×75
= 150 cm