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s = 20 cm
h = 1,6 m
Ditanyakan :
a. h cermin
b. Jarak dengan bayangan ?
Dijawab :
a, Panjng minimal cermin :
L = 1/2 × 1,6
= 0,8 m
b. Jarak dengan bayangn :
S = S'
Jadi jarak = 20 + 20 = 40 cm