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A sound wave has a frequency of 2 kHz and wavelength of 15 cm. How much time will it take to travel 1.5 km?

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A sound wave has a frequency of 2 kHz and wavelength of 15 cm. How much time will it take to travel 1.5 km?

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v = nλ 

n = 2 kHz = 2000Hz 

λ = 15 cm = 0.15 m 0.15 × 2000 = 300 ms-1 

Time(t) = \(\frac{Distance (d)}{Velocity(V)}\) 

The sound will take 5 s to travel a distance of 1.5 km.

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