A sound wave of frequency 440 Hz has a wavelength of 0.78 m. What is the speed of sound in this medium?
Answer and explanation
Correct answer: A. 343 m/s
- Step 1: m/s. Answer: 343 m/s. Why not the others: 440 m/s is the frequency; 0.0018 m/s divides wavelength by frequency; 34 m/s is a decimal slip.
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