Jawabanmu

2014-05-04T01:11:15+07:00
Jarak benda S = 10 cm
jari2 kelengkungan R = 30 cm
tinggi bayangan h' = 6 cm
tinggi benda h = ?
f' = -R/2 = -30/2 = -15
jarak bayangan s':
s' = sf/s-f = 10 (-15) / 10 - (-15) = -150/25 = -6 cm
perbesaran M :
M = -s'/s = -(-6)/10 = 6/10 = 3/5 kali
tinggi benda h:
h = h' / M = 6 / 3/5 = 6 x 5/3 = 30/3 =10 cm