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Waves Test - 50...

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  • Question 1
    4 / -1

    If two waves of same frequency and same amplitude respectively, on superimposition produced a resultant disturbance of the same amplitude, the waves differ in phase by

  • Question 2
    4 / -1

    A stationary point source of sound emits sound uniformly in all directions in a non-absorbing medium. Two points P and Q are at a distance of 4 m and 9 m respectively from the source. The ratio of amplitudes of the waves at P and Q is

  • Question 3
    4 / -1

    Two waves are propagating to the point P along a straight line produced by two sources A and B of simple harmonic and of equal frequency. The amplitude of every wave at P is \'a\' and the phase of A is ahead by π/3 than that of B and the distance AP is greater than BP by 50 cm. Then the resultant amplitude at the point P will be, if the wavelength is 1 meter

  • Question 4
    4 / -1

    Coherent sources are characterized by the same

  • Question 5
    4 / -1

    The minimum intensity of sound is zero at a point due to two sources of nearly equal frequencies, when

  • Question 6
    4 / -1

  • Question 7
    4 / -1

    If two waves having amplitudes 2A and A and same frequency and velocity, propagate in the same direction in the same phase, the resulting amplitude will be

  • Question 8
    4 / -1

    Out of the given four waves (1), (2), (3) and (4)
    y = a sin (kx + ωt) ... (1)
    y = a sin (ωt – kx) ... (2)
    y = a cos (kx + ωt) ... (3)
    y = a cos (ωt – kx) ... (4)
    emitted by four different sources S1, S2, S3, and S4 respectively, interference phenomena would be observed in space under appropriate conditions when

  • Question 9
    4 / -1

    Two waves of same frequency and intensity superimpose with each other in opposite phases, then after superposition the

  • Question 10
    4 / -1

    The superposing waves are represented by the following equations :
    y1 = 5 sin 2π(10t – 0.1x), y2 = 10 sin 2π(20t – 0.2x)
    Ratio of intensities Imax / Imin will be

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