A sound ware has a frequency of 20 KHz and
wavelength 70 cm How much time will it take to
travel a distance of 2 km
Answers
Answer:
Frequency,
v = 2 kHz
= 2000 Hz
Wavelength,
λ = 35 cm
= 0.35 m
Speed,
V = wavelength x Frequency
V = λ x v
= 0.35 m x 2000 Hz
= 700 m/s
Time taken by the wave to travel distance of 1.5 km is
t = d/v
= (1.5 x 1000 m) / 700 ms-^1
= 15/7 s = 2.1 s
Hence sound will take 2.1 s to travel a distance of 1.5 km.
Explanation:
Answer:
Time taken by the sound wave, t = 2 seconds
Explanation:
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sankar92
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a sound wave has a frequency of 4 kilohertz and wavelength of 40 cm the time taken by the sound wave to travel a distance of 3.2 km is ?
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nikolatesla2
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distance = 3.2 km
frequency = 4 hz
ladma = 0.4 m
velocity = 0.4×4 = 1.6 m/sec
time = d/v
3.2/1.6 = 2sec
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shirleywashington
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Answer:
Time taken by the sound wave, t = 2 seconds
Explanation:
It is given that,
Frequency of sound wave, f = 4 kHz = 4000 Hz
Wavelength of sound wave, λ = 40 cm = 0.4 m
We have to find the time taken by the sound wave to travel a distance of 3.2 km,
Velocity of sound is given by :
v = 1600 m/s
Velocity of wave is also given by distance travelled per unit time.
t = 2 seconds