[tex]Dane:\\v = 9,6\frac{m}{s}\\\lambda= 480 \ cm = 4,8 \ m\\Szukane:\\f = ?\\\\Rozwiazanie\\\\\lambda = \frac{v}{f} \ \ \ |\cdot f\\\\\lambda f = v \ \ \ |:\lambda\\\\f = \frac{v}{\lambda}\\\\f = \frac{9,6\frac{m}{s}}{4,8 \ m}\\\\\boxed{f = 2 \ Hz}[/tex]
Odp. Częstotliwość wynosi 2 Hz.
