The velocity of a wave can be calculated using the formula: velocity = frequency x wavelength.
Given:
- Wavelength = 0.03 m
- Frequency = 120 Hz
To find the velocity:
velocity = 120 Hz x 0.03 m
velocity = 3.6 m/s
Therefore, the correct answer is:
A. 3.6 m/s
This answer is obtained by multiplying the frequency (120 Hz) by the wavelength (0.03 m) to find the velocity of the wave, which is 3.6 m/s.
