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Cermin cekung, f = 10 cm
Tinggi benda, h = 2 cm
Sifat bayangan = ___?
Jawab :
1/S + 1/s' = 1/f
1/15 + 1/s' = 1/10
1/s' = 1/10 - 1/15
1/s' = 3/30 - 2/30
1/s' = 1/30
S' = 30 cm (nyata, terbalik)
M = s' / S
M = 30/15
M = 2 kali (diperbesar)
Kesimpulannya :
- bayangan bersifat
Nyata, terbalik, diperbesar