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Jarak 5 rapatan dan 4 regangan = λ
λ = 81 m
v = 324 m/s
Dit: f = ...?
JAWAB:
λ = 81 m
λ = . 81 m
λ = 18 m
v = λ x f
324 m/s = 18 m x f
f =
f = 18 hz