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Question

Which of the following statements best explains what happens to the speed of sound when it travels from air into water?

This question was previously asked in
RRB Technician 2026 Grade 3 Question Paper (7-Oct-2026) (Shift 3)
The correct answer is

The speed of sound increases as it moves from air to water.

Sound is a mechanical wave and travels faster in media where particles are closely packed and the medium is less compressible.

Its speed is about 343 m/s in air and about 1480–1500 m/s in water — roughly four times faster.

Pitch depends on frequency, which does not change when sound enters a new medium.

Hence, the speed of sound increases as it moves from air to water.

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Similar Questions

  1. A student observes two different musical notes from two sources. Note X has a greater number of compressions passing a fixed point per second than Note Y, but both have the same loudness. Based on the characteristics of sound, what can be concluded about Note X compared to Note Y?

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  3. If you shout to your friend who is at the same distance from you across a playground and is also touching the other end of a steel rail, through which path will your friend hear your voice first, and why?

  4. Which of the following situations best illustrates the use of infrasonic waves in real life?

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  9. Which quantity is directly proportional to the speed of sound, if the frequency is kept constant?

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  1. When a longitudinal wave moves through a certain medium, the quantity which is transmitted through the medium is
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