Question

The sound wave frequency has 2 hz and wave wavelength 40 cm how long it will it take to travel 1.6 km

Answer 1

Velocity of wave = wavelength * frequency

Wave length= 40 cm = 0.4 m

V= 0.4*2=0.8 m/s

As

V=s/t

t=s/v

=1600/0.8 (s=1.6 km =1600 m)

=2000 s