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Given speed of wave (v) = 960 m/s, find the frequency of the wave (f) and wavelength (λ).

1. Frequency = 3600 rev/min, Wavelength = 16 m
2. Frequency = 1800 rev/min, Wavelength = 8 m
3. Frequency = 7200 rev/min, Wavelength = 32 m
4. Frequency = 2400 rev/min, Wavelength = 12 m

Correct answer: Frequency = 3600 rev/min, Wavelength = 16 m

Solution

The speed of the wave is given by v = fλ. For option A, converting frequency to Hz: 3600 rev/min = 3600/60 = 60 Hz. Using λ = v/f = 960/60 = 16 m, which matches the given wavelength. Thus, option A is correct.

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