Question

Which of the following choices correctly describes the behavior of the sound wave as it moves from metal to air?

The sound wave does not change speed, but refracts. The wavelength decreases while frequency increases.
The sound wave slows down and refracts. The wavelength decreases, but the frequency remains the same.
The sound wave slows down and refracts. The frequency decreases, but the wavelength remains the same.
The sound wave slows down and refracts. The wavelength and frequency decrease.

Answer 1

slow down. the frequency stays the same but the wavelength decreases.

Answer 2

For anyone the answer is B.