Jawaban:
f = 30 cm
m = 3 kali, nyata
s = _ ?
Perbesaran
m = s' / s
3 = s' / s
s' = 3s
Pers. Gauss
1/s + 1/s' = 1/f
1/s + 1/3s= 1/30
3/3s + 1/3s = 1/30
4/3s = 1/30
3s = 120
s = 40 cm ← jwb
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Jawaban:
f = 30 cm
m = 3 kali, nyata
s = _ ?
Perbesaran
m = s' / s
3 = s' / s
s' = 3s
Pers. Gauss
1/s + 1/s' = 1/f
1/s + 1/3s= 1/30
3/3s + 1/3s = 1/30
4/3s = 1/30
3s = 120
s = 40 cm ← jwb