Question

ONE sound wave travels through two containers of different gasses. Wave through container 1 has a wavelength of 1.2 m. Wave through container 2 has a wavelength of 3.6 m. The frequency of wave through container 2 must be __________ the frequency of wave through container 1.
a. one-ninth


b. one-third


c. the same as


d. three times larger than

Answer 1

I’m not 100% but the answer is b