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Characterstics

                                            of a wave



                                                     Time
                 Amplitude      wavelength          period        Frequency       Velocity

                                                     time taken to       The
                                       distance                      number of            The distance
                  maximum              between       complete one    vibrations          travelled by a
                 displacement         two nearest     vibration is       per              wave in one
                    of each        (adjacent) crests   called time     second.              second
                 particle from        or troughs        period.
                   its mean                                             symbol of
                   position           SI unit is metre.  denoted by T.  frequency is ν (nu).  S.I. unit is metres per
                                                                                        second (m/s).
                                                       SI unit is
                                    denoted by the    second (s).
                     SI unit is      Greek letter                    SI unit of frequency
                                                                       is hertz (Hz).
                    metre (m)         lamda (λ).     •frequency of a wave               Velocity =
                                                      is the reciprocal of            Wavelength ×
                   denoted                             the time period.                 Frequency
                     by A.
                                                           i.e., f = 1/T
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