Find the wavelength of sound for frequencies up to 120 kHz at which a bat can hear it. Take the speed of sound in air as 344 m/s.2.8×10−32.8×10 −3 m 2.4×10−22.4×10 −2 m2.8×10−22.8×10 −2 m 2.4×10−32.4×10 −3 m
Question
Find the wavelength of sound for frequencies up to 120 kHz at which a bat can hear it. Take the speed of sound in air as 344 m/s.2.8×10−32.8×10 −3 m 2.4×10−22.4×10 −2 m2.8×10−22.8×10 −2 m 2.4×10−32.4×10 −3 m
Solution
To find the wavelength of sound, we can use the formula:
Wavelength = Speed of Sound / Frequency
Given that the speed of sound in air is 344 m/s and the frequency is 120 kHz (120,000 Hz), we can substitute these values into the formula:
Wavelength = 344 m/s / 120,000 Hz
Now, let's calculate the wavelength:
Wavelength = 0.0028667 meters
Therefore, the wavelength of sound for frequencies up to 120 kHz is approximately 0.0028667 meters.
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