Question
Download Solution PDFA sound wave travels at a speed of 339 ms–1. If its wavelength is 1.5 cm, what will be the frequency of the wave?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is 22600 Hz.
Key Points
- Given that :
- Speed of sound (v) = 339 ms-1
- Wavelength of sound (λ) = 1.5 cm
- λ = 0.015 m
- Speed of sound(v) = Wavelength(λ) x Frequency(f)
- \(f ={v\over{λ}}\)
- \(f ={339\over{0.015}}\)
- Frequency = 22600 Hz
Additional Information
- The frequency range of audible sound for humans lies between 20 Hz to 20,000 Hz.
- Since the frequency of the given sound is more than 20,000 Hz, it is not audible.
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