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 1 year 2021-09-03T19:40:57+00:00 2 Answers 7 views 0

Answers ( )

    0
    2021-09-03T19:42:18+00:00

    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.

    0
    2021-09-03T19:42:55+00:00

    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, [tex]A_{R}[/tex] = [tex]\sqrt{A_{1} ^{2} + A_{2} ^{2} + 2A_{1} A_{2}cos \alpha }[/tex]

                                            = [tex]\sqrt{(A_{1} – A_{2} )^{2} }[/tex]

                                            = [tex]A_{1}[/tex] –  [tex]A_{2}[/tex]

    where [tex]\alpha[/tex] is the phase difference.

    Given that: [tex]A_{1}[/tex] = 75 units, [tex]A_{2}[/tex] = 74 units, so that;

    [tex]A_{R}[/tex] = 75 – 74

         = 1

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

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )