Jawabanmu

Jawaban paling cerdas!
2014-05-04T15:07:46+07:00
A. 1/f = 1/Si + 1/So
1/Si = 1/f-1/So = 1/40-1/60
= 3/120-2/120= 1/120
Si = 120 cm

b. M = |Si/So| = 120/60 = 2 kali perbesaran

c. Hi = M x Ho = 2x4 = 8 cma
catatan: f=1/2.R(jari-jari kelengkungan)