Answer:
time taken by the wave to reach the person is 0.2 s
Explanation:
As we know that the speed of the wave is given as
[tex]v = \lambda f[/tex]
here we know that the wavelength of the wave is
[tex]\lambda = 2.5 m[/tex]
[tex]f = 10 Hz[/tex]
now speed of the wave is given as
[tex]v = 10(2.5)[/tex]
[tex]v = 25 m/s[/tex]
Now time taken by the wave to reach 5 m distance is
[tex]t = \frac{L}{v}[/tex]
[tex]t = \frac{5}{25}[/tex]
[tex]t = 0.2 s[/tex]
