(b) 0.491m
Explanation:
Given:
Frequency, f = 698.46Hz
Velocity, v = 343m/s
Wavelength, λ = ?
We know:
velocity = wavelength X frequency
Substituting the values in the formula we get:
[tex]343 = wavelength X 698.46\\\\Wavelength = \frac{343}{698.46} \\\\Wavelength = 0.491m[/tex]
Therefore, the wavelength of the sound is 0.491m