Question

The quantity which does not change wherE sound enters from one medium to another

• A. Wavelength
• B. Speed
• C. Frequency
• D. Amplitude

Answer 1

Answer:

C. Frequency

• Frequency is defined as the number of complete cycles or oscillations of a wave that pass a given point per unit of time. It is typically measured in Hertz (Hz), where 1 Hz equals one cycle per second.

• When a sound wave travels from one medium to another (e.g., from air to water), its frequency remains unchanged. This is because the frequency of a wave is determined by its source. The source continues to oscillate at the same rate, regardless of the medium it is propagating through.