A wave has a frequency of 256 Hz and a wavelength of 1.33 m. What is its speed?
Answer and explanation
Correct answer: A. 340.5 m/s
- Step 1: v = f x lambda. Step 2. v = 256 x 1.33 = 340.5 m/s. Answer: 340.5 m/s. Why not the others: 192.5 m/s: this divides frequency by wavelength. 0.0052 m/s: this divides wavelength by frequency. 257.3 m/s: this adds frequency and wavelength.
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