FREQUENCY, WAVELENGTH & TIME PERIOD
In general, frequency, wavelength & time period are quite confusing parameters. Indeed, these three are entirely different in nature.
Frequency is the number of occurrences of a repeating event per unit time. Unit of frequency is hertz(hz).
Wavelength is the distance between identical points in the adjacent cycles of a waveform signal propagated in space or along a wire. Unit of wavelength is meter(m).
The time taken to complete one full cycle is said to be time period. Unit of time period is meter/second (ms).
Lets take a signal at 2 kHz. Then the period is 0.5 ms. To plot this as a function of time.If a sound wave is travelling in space with a speed of 340 m/s then the wavelength is the distance the sound will travel in a period 340 * 0.5m = 17 cm. (i.e) 0.17m
import numpy as n
import matplotlib.pyplot as p
f = 2
y = .17
p.title(‘Wavelength curve’, fontsize=18)
p.title(‘Frequency curve’, fontsize=18)