Two waves with Amplitude of 75 units and 74 units arrive at a point in a medium simultaneously. If the two waves are out of phase with each

Question

Two waves with Amplitude of 75 units and 74 units arrive at a point in a medium simultaneously. If the two waves are out of phase with each other what is the resultant amplitude of the wave

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Nguyệt Ánh 4 years 2021-09-03T19:40:57+00:00 2 Answers 29 views 0

Answers ( )

  1. Doris
    0
    2021-09-03T19:42:18+00:00
    Reply

    Answer:

    Resultant amplitude = 1 unit.

    Explanation:

    The amplitude of a wave is its maximum displacement during propagation.

    Since the two waves are out of phase, the resultant amplitude can be determine by;

    Resultant amplitude,  =

                                           =

                                           =  –  

    where  is the phase difference.

    Given that:  = 75 units,  = 74 units, so that;

    = 75 – 74

        = 1

    The resultant amplitude of the two wave when out of phase is 1 unit.

  2. kimcuc
    0
    2021-09-03T19:42:55+00:00
    Reply

    Answer:

    Resultant amplitude = 1 unit.

    Explanation:

    The amplitude of a wave is its maximum displacement during propagation.

    Since the two waves are out of phase, the resultant amplitude can be determine by;

    Resultant amplitude, A_{R} = \sqrt{A_{1} ^{2} + A_{2} ^{2} + 2A_{1} A_{2}cos \alpha }

                                            = \sqrt{(A_{1} - A_{2} )^{2} }

                                            = A_{1} –  A_{2}

    where \alpha is the phase difference.

    Given that: A_{1} = 75 units, A_{2} = 74 units, so that;

    A_{R} = 75 – 74

         = 1

    The resultant amplitude of the two wave when out of phase is 1 unit.

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