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v = 360 m/s
λ = 25 cm = 0,25 m
ditanyakan : f = ?
jawab:
v = λ* f
f = v / λ
f = (360 m/s) / 0,25 m
f = 1.440 Hz
λ=25cm=0,25m
f=?
v=λf
f=v/λ
f=360/0,25
f=1440 Hz