A wave has a frequency of 200 Hz and a wavelength of 1.5 m. What is the wave speed?
Correct answer: C. 300 m/s
- A. 150 m/s
- B. 200 m/s
- C. 300 m/s
- D. 400 m/s
Explanation
Wave speed v = f × λ = 200 × 1.5 = 300 m/s.
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About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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