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fob = 10 mm = 1 cm
fok = 4 cm
h = 4 mm
Sob = 20 mm = 2 cm
Mata tidak berakomodasi
Ditanya:
h' = ------------?
Jawab
S'ob = (Sob x fob)/(Sob - fob)
= (2 x 1)/(2 - 1)
= 2 cm
Untuk mata tidak berakomodasi:
M = (S'ob/Sob) x (Sn/fok)
= (2/2)x(25/4)
= 25/4 x
Tinggi bayangan:
h' = M x h
= 25/4 x 4
= 25 mm
Jadi tinggi bayangan akhir yang teramati 25 mm