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F = 500 Hz
v = 350 m/s
Δθ = 60°
x = __ ?
Panjang gelombang
v = λ f
λ = v/f = 300 / 500 = 3/5 m = 60 cm
Jarak 2 titik yang berbeda sudut fase 60º
Δφ = Δθ / 2π
x/λ = Δθ / 360º
x = (Δθ / 360º) · λ
x = (60 / 360º) · (60 cm)
x = 10 cm ← jawaban