Question

When sound waves traveling in the air enter into the medium of water, which of the quantity remains unchanged?

• A. wavelength
• B. velocity
• C. frequency
• D. none

Answer 1

The correct option is C

frequency

1. Frequency does not depend on the nature of the medium.
2. It only depends on the nature of the sound source.
3. All the other factors depend on the nature of the medium.

Hence, option (C) is the correct answer.