What is the wavelength of a 20 Hz periodic wave moving at 40 m/s?
Use the equation below!
a
800 m
b
0.5 m
c
2 m
d
80 m
The wavelength is calculated using the formula:
wavelength = speed/frequency
Substituting the given values:
wavelength = 40/20 = 2 meters
Therefore, the answer is c) 2 m.
To find the wavelength of a periodic wave, we can use the equation:
Wavelength (λ) = Speed (v) / Frequency (f)
Given that the frequency (f) is 20 Hz and the speed (v) is 40 m/s, we can substitute these values into the equation to find the wavelength:
Wavelength (λ) = 40 m/s / 20 Hz
Simplifying this equation, we have:
Wavelength (λ) = 2 m
Therefore, the wavelength of the 20 Hz periodic wave moving at 40 m/s is 2 m.
So, the correct answer is option c) 2 m.