Answer: a. [tex]wavelength = 3.16 * 10^{-3}m[/tex]
b. [tex]frequency = 9.49 * 10^{10}[/tex]
Explanation:
a. Note that the frequency of the ultrasound wave through aluminum is given as f = 12.0 * [tex]10^{6}[/tex] Hz.
while its speed is;
Speed of the sound = v = 6320 m/s.
Recall that
v = fλ
λ = v/f
[tex]wavelength = \frac{6320}{2.0 * 10^{6} }\\\\ wavelength = 3.16 * 10^{-3}m[/tex]
b. f = c/λ
[tex]f = \frac{3 * 3.0^{8} }{3.16 * 10^{-3} } \\ \\ = 9.49 * 10^{10}[/tex]
