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When sound travels from air to water, which parameter does not change?

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in Engineering Physics I by (558k points)
When sound travels from air to water, which parameter does not change?

(a) Wavelength

(b) Frequency

(c) Velocity

(d) Temperature

This question was addressed to me in semester exam.

This interesting question is from Sounds and Waves topic in chapter Waves of Engineering Physics I

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Best answer
Right answer is (b) Frequency

The explanation is: Frequency remains unchanged when sound travels from air to water.

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