What is the wavelength of a 20 Hz periodic wave moving at 40 m/s?
Use the equation below!
a
80 m
b
0.5 m
c
800 m
d
2 m
The equation needed to solve this problem is:
wavelength = speed of wave / frequency
Plugging in the given values:
wavelength = 40 m/s / 20 Hz
wavelength = 2 meters
Therefore, the wavelength of a 20 Hz periodic wave moving at 40 m/s is 2 meters. The answer is option d.
To find the wavelength (λ) of a wave, you can use the formula:
λ = v / f
where λ represents the wavelength, v represents the velocity or speed of the wave, and f represents the frequency of the wave.
Given:
Frequency (f) = 20 Hz
Velocity or speed (v) = 40 m/s
Substitute the values into the formula:
λ = v / f
= 40 m/s / 20 Hz
= 2 m
Therefore, the wavelength of the wave is 2 m (option d).
To find the wavelength of a wave, we can use the formula:
Wavelength = speed / frequency
In this case, the given frequency is 20 Hz and the speed is 40 m/s. Substituting these values into the formula, we get:
Wavelength = 40 m/s / 20 Hz
Simplifying this expression, we find:
Wavelength = 2 m
Therefore, the wavelength of the wave is 2 m.
So, the correct answer is d) 2 m.