Which of the following is true for sound waves? They require a medium
They are unrelated to vibrations.
They can travel in a vacuum
They cannot travel through liquids
None of the above

Explanation:

Answer

λ α

f

1

Wave velocity = Wavelength × Frequency

Thus, we can say that wavelength is inversely proportional to the frequency.

FALSE - Only electromagnetic waves can travel through a vacuum; mechanical waves such as sound waves require a particle-interaction to transport their energy. There are no particles in a vacuum.

what do the notation's look like?

b.transmitters send radio waves, and receivers capture radio waves.