Jawabanmu

2014-03-01T11:45:42+07:00
V = λ.f 
V = λ/T
V = cepat rambat (m/s)
λ = panjang gelombang (m)
f = frekuensi (Hz)
T = perioda (sekon)
2014-03-01T11:47:21+07:00