Question

calculate the time taken by a sound to travel 1.5km when frequency & wavelength are 2000hz & 0.35m respectively

Answer 1

DATA:

Frequecy=f=2hz

Wavelength=λ=40cm=0.4m

Distance=S=1.6km=1600m

Time taken by the wave to reach the distance 1600m = t = ??

Solution:

Since we know that :-

V=fλ

By using the above formula we will find velocity (v):-

V=2×0.4

V=0.8m/s

So as we know that:-

V=S/t

Therefore:-

T=S/V

By subsituting the values in above equation:

T=1600/0.8

T=2000seconds

I hope i have answer your question…

Answer 2

Explanation:

Q)calculate the time taken by a sound to travel 1.5km when frequency & wavelength are 2000hz & 0.35m respectively.

refer to the attachment