Sebuah magnet batang tingginya 10cm terletak 10cm didepan lensa cekung jarak fokus lensa 15 cm tentukan jarak bayangan , perbesaran bayangan,tinggi bayangan

Mata Pelajaran : Fisika
Materi : Alat Optik

Lensa cekung'
h = 10 cm
f = -15 cm
s = 10 cm

s' = …?
M = …?
h'= …?

1/f = 1/s + 1/s'
1/s' = 1/f – 1/s
1/s' = 1/-15 – 1/10
1/s' = (-2-3)/30
1/s' = -5 / 30
s' = -6 cm

M =|s'/s|
M = |-6 /10|
M = 3/5 x

M = h'/h
3/5 = h' / 10
5h' = 30
h' = 6 cm