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M = 1/2
So = ?
f = ?
M =
=
So = 6.2
So = 12 cm
= +
= +
=
=
f =
f = 4 cm
S₀ = 1/2 x 6 = 3 cm
DItanya = f..?
Jawab
1/f = 1/S₀ + 1/S₁
1/f = 1/3 + 1/6
1/f = 2+1/6
1/f = 3/6
f = -2 cm
karena cermin cembung, sehingga jarak fokusnya bernilai -