Penjelasan:
1/f = 1/s + 1/s'
1/s' = 1/f - 1/s
1/s' = 1/80 - 1/40
1/s' = 1/80 - 2/80
1/s' = -1/80
s' = -80 cm (di belakang cermin)
M = |s'/s|
M = |-80/40|
M = 2 kali
M = h'/h
h' = Mh
h' = 2 . 20
h' = 40 cm
Mapel : Fisika
Kelas : 8
Materi : Optik
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Penjelasan:
1/f = 1/s + 1/s'
1/s' = 1/f - 1/s
1/s' = 1/80 - 1/40
1/s' = 1/80 - 2/80
1/s' = -1/80
s' = -80 cm (di belakang cermin)
M = |s'/s|
M = |-80/40|
M = 2 kali
M = h'/h
h' = Mh
h' = 2 . 20
h' = 40 cm
Mapel : Fisika
Kelas : 8
Materi : Optik