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v= 4 m/s
Panjang gelombang= v/f= 4/100= 1/25= 0,04 m
f = 100 HZ
v = 4 m/s
dit
lamda
jawab
v = Lamda x f
Lamda = 4 / 100
Lamda = 0,04 m
lamda = 4 cm
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