If two sounds have the same wavelength in air at the same temperature, what other property must they also have in common?Intensity Amplitude Frequency
Correct answer: B. III only
- A. I only
- B. III only
- C. I and II only
- D. II and III only
- E. I, II and III
Explanation
If the two sounds have the same wavelength in air at the same temperature, it means they have the same speed of propagation in that medium. Since the speed of sound is constant, if the wavelength is the same, the frequency must also be the same. The relationship between frequency and wavelength is inversely proportionalv=f x wavelength
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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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