Suatu benda setinggi 10 cm berjarak 60 cm di depan lensa cekung yang mempunyai panjang fokus 30 cm. Hitung jarak bayangan, perbesaran bayangan, tinggi bayangan dan sifat-sifat bayangan!
![]()
Jawaban:
tinggi benda = h = 10 cm
jarak benda = so = 60 cm
jarak fokus = f = 30 cm
jarak bayangan
1/so + 1/si = 1/f
1/60 + 1/si = 1/30
1/si = 1/30 - 1/60
1/si = 2/60 - 1/60
1/si = 1/60
1 x si = 1 x 60
si = 60 cm
perbesaran bayangan
m = si/so = 60 / 60 = 1 cm
tinggi bayangan
m = h'/h
1 = h'/ 10
h' = 1 x 10
h' = 10 cm
Penjelasan:
cermin cekung
[answer.2.content]