A sound wave has frequency of 2kHz and wavelength of 35cm .If an observer is 1.4km away from the source. At what time interval could the observer hear the sound?
Answers
Answered by
7
Explanation:
Speed of wave = frequency x wavelength
speed =
time/distance
∴
time/distance
= 0.35×2000 = 700 m/s
time = 700/1400
= 2s
Answered by
2
Answer:
Explanation:
Speed of wave = frequency x wavelength
speed = distance/time
∴ distance/time
= 0.35×2000 = 700 m/s
time = 1400/700
= 2s
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