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λ = 75 cm ⇒ 0,75 m
Dit: v....?
Peny: v = λ.f ⇒ v = 0,75 x 440 ⇒ v = 330 m/s
λ = 75 cm = 75 x 10⁻² = 0,75 m
dit : v...?
jwb: v = λ x f
v = 0,75 x 440
v = 330 m/s