Question

Marco is conducting an experiment. He knows the wave that he is working with has a wavelength of 32.4 cm. If he

measures the frequency as 3 hertz, which statement about the wave is accurate?
O The wave has traveled 32.4 cm in 3 seconds.
The wave has traveled 32.4 cm in 9 seconds.
O The wave has traveled 97.2 cm in 3 seconds.
O The wave has traveled 97.2 cm in 1 second.

Answer 1

Speed = 32.4 * 3

Speed = 97.2 m/s

so, the wave has traveled 97.2 cm in 1 second.

Answer 2

By using the wave speed formula, v=fλ

v = 3(32.4)

= 97.2 cm/s

The wave has travelled 97.2 cm in 1 second.