No 11 pakai caranya yaa Terimakasihh

PEMANTULAN CAHAYA

Cermun cekung
f = 10 cm
s = 12 cm
m = __?

perbesaran
m = f / (s – f(
m = 10 / (12 – 10)
m = 10/2 = 5 kali ← jwb

  1/f = 1/s + 1/s'
1/10 = 1/12 + 1/s'
 1/s' = 1/10 – 1/12
 1/s' = 6/60 – 5/60
 1/s' = 1/60
    s' = 60 cm

M = s'/s
    = 60/12
M = 5 kali