Niveditha

The 5 main properties of Waves are amplitude, frequency, wavelength, wave speed, and time period.

Amplitude → The total displacement of a wave from it's resting position. It is about "how much a wave disturbs a medium?" Amplitude is denoted by the symbol 'A.' It's S.I. unit is metre (m). It's formulae is :

x = A sin (wt + φ)

OR

x = A cos (wt + φ)

Frequency → The total number of waves passing through a definite point in a given time. It is about "how often a wave disturbs a medium?" Frequency is denoted by the symbol 'f.' It's S.I. unit is Hertz (Hz), named in the honour of a German physicist - Heinrich Rudolf - Hertz. It's formulae is :

f = 1/T

Wavelength → The total distance over which the wave's shape repeats. Wavelength is denoted with the symbol lambda (𝜆). It's S.I. unit is meter (m). It's formulae is :

𝜆 = v/f

Time Period → The total time a particle of a medium takes to make a whole oscillation. Time period is denoted with the symbol 'T.' It's S.I. unit is seconds (s). It's formulae is :

T = 1/f

Wave Speed → The total distance covered by a point of the wave in a specific period of time. It is about "how fast each disturbance moved through the medium?" Wave speed is denoted by the symbol 'v.' It's S.I. unit is metre per second (m/s). It's formulae is :

v = 𝜆f

1 Hertz (Hz) is equal to one oscillation per one second (s). Frequency is inversely proportional to time period, therefore the formulae.