Question

which of the following remains unchanged in a medium

a. Frequency
b. Wavelength
c. Amplitude
d. Speed​

Answer 1

Answer:

a)frequency✔

Explanation:

The physical quantity that remain unchanged when a sound wave goes from one medium to another is frequency

Answer 2

Answer:Frequency remains unchanged in a medium.

Explanation:pls mark me the brainliest if it helps uuhh...