Question

how long will it take for a sound wave of 25cm wavelength and 2.5hz frequency of to travel a distance of 2.5km​

Answer 1

Answer:

4000sec

Explanation:

Given :

• Frequency(f)=2.5hz

• Wavelength(λ)=25cm=0.25m

• Distance(S)=2.5km=2500m

To Find :

• Time(t) taken by the wave to reach the distance 2500m

Solution :

We know that :-V = fλ

So,

V = 2.5 × 0.25V

V = 0.625m/s

V=S/t

Therefore:-

T=S/V

By subsituting the values in above equation:

T=2500/0.625T

T=4000seconds

Therefore,it will take 4000seconds