Benda setinggi 2 cm diletakkan pada jarak 6 cm di depan cermin cekung yang berjari-jari kelengkungan 10 cm. tentukan 1. jarak bayangan, 2. perbesaran bayangan, 3. tinggi bayangan, 4. sifat bayangan
Keyvio
H = 2cm s = 6cm R = 10cm dit = s' ? m ? h' ? sifat bayangan? hit = f = r / 2 = 10 / 2 = 5cm s' = s x f / s - f = 6 x 5 / 6-5 = 30 / 1 = 30cm m = -s' /s = -30/6 = -5x h' = m x h = -5 x 2 = -10 cm sifat bayangan = diperbesar,nyata,terbalik
s = 6cm
R = 10cm
dit = s' ? m ? h' ? sifat bayangan?
hit =
f = r / 2
= 10 / 2
= 5cm
s' = s x f / s - f
= 6 x 5 / 6-5
= 30 / 1
= 30cm
m = -s' /s
= -30/6
= -5x
h' = m x h
= -5 x 2
= -10 cm
sifat bayangan = diperbesar,nyata,terbalik