If a wave is traveling at a speed of 130 m/s and has a wavelength of 5m. Then find out the frequency of the wave.
Correct answer: D. 26 Hz
- A. 650 Hz
- B. 20 Hz
- C. 3.8 x 10^2 Hz
- D. 26 Hz
Explanation
To find the frequency of the wave, use the formula that relates wave speed (v), frequency (f), and wavelength (λ): v = fλ. Here, the wave speed v is 130 m/s, and the wavelength λ is 5 m. Rearrange the formula to solve for frequency: f = v/λ. Substitute the given values: f = 130 m/s ÷ 5 m = 26 Hz. Therefore, the frequency of the wave is 26 Hz, making Option D the correct answer. The other options result from incorrect calculations or misunderstandings of the formula.
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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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