Answer:
C.500 Hz
Explanation:
the information we have about the sound wave:
speed: [tex]v=1500m/s[/tex]
wavelength: [tex]\lambda = 3m[/tex]
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To find the frequency of the wave we need to use the following equation:
[tex]v=f\lambda[/tex]
where [tex]v[/tex] is the velocity, [tex]f[/tex] is the frequency, and [tex]\lambda[/tex] is the wavelength.
clearing for the frequency:
[tex]f=\frac{v}{\lambda} \\[/tex]
and susbtituting the values:
[tex]f=\frac{1500m/s}{3m}\\ f=500s^{-1}[/tex]
and since the units of frequency in [tex]s^{-1}[/tex] are Hertz [Hz]
the frequency is:
[tex]f=500Hz[/tex]
which is option C
