When a sound wave passes from air into water, which quantity stays the same?
Answer and explanation
Correct answer: C. Frequency
The frequency is set by the source and does not change at a boundary.
Answer: Frequency.
Why not the others: Wavelength: it changes with speed. Speed: sound is faster in water. Amplitude: it does not generally stay the same.
Answer: Frequency.
Why not the others: Wavelength: it changes with speed. Speed: sound is faster in water. Amplitude: it does not generally stay the same.
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