Question

A sound wave has a frequency of 2000 Hz and a wavelength of 72cm how long will it take to travel to the 5km

Answer 1

F=2000 Hz
w.l=0.72 m

speed = F×w.l
= 1440

now dist. = 500 m
time = d/speed
500/1440
=0.347 sec

Answer 2

Answer:

Ans-3.4667 m/s ≈ 3.47 m/s

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