a sound wave has a frequency of 2 kHz and wavelength 35 cm.how long will it take to travel 1.5 km
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Answered by
2
Frequency(f)=2Khz
wavelength=35cm
Wave velocity=1.5km
We know that
wave velocity=Wavelength×frequency
then take out frequency and put in formula of frequency=1/ time period
then you will get the time
wavelength=35cm
Wave velocity=1.5km
We know that
wave velocity=Wavelength×frequency
then take out frequency and put in formula of frequency=1/ time period
then you will get the time
Answered by
1
We know,
Velocity = wavelength × it's frequency.
Wavelength = 35 cm =0.35 m
Frequency = 2khz
Displacement = 1.5 km = 1500 m
Velocity = 0.35 × 2 =0.7 m/sec
Now, time = displacement / velocity.
Time = 1500/0.7 = 2142.86 sec
So, time = 35 min 42.86 sec.. Ans.
Hope this is ur required answer.
Velocity = wavelength × it's frequency.
Wavelength = 35 cm =0.35 m
Frequency = 2khz
Displacement = 1.5 km = 1500 m
Velocity = 0.35 × 2 =0.7 m/sec
Now, time = displacement / velocity.
Time = 1500/0.7 = 2142.86 sec
So, time = 35 min 42.86 sec.. Ans.
Hope this is ur required answer.
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