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Two sources of sound A and B produces th...

Two sources of sound `A` and `B` produces the wave of `350 Hz`. They vibrate in the same phase. The particel `P` is vibrating under the influence of these two waves, if the amplitudes at the point P produced by the two waves is `0.3mm` and `0.4mm` then the resultant amplitude of the point `P` will be when `AP-BP=25cm` and the velocity of sound is `350m//sec`.

A

`0.7` mm

B

`0.1` mm

C

`0.2` mm

D

`0.5` mm

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • Two sources of sound A and B produce the wave of 350 Hz ,they vibrate in the same phase.The particle P is vibrating under the influence of these two wave.If the amplitudes at the point P Produced by the two waves is 0.3 mm and 0.4 mm ,then the resultant amplitude of the point P will be [Given AP -BP = 25 cm and the velocity of sound is 350 m/s ]

    A
    0.7 mm
    B
    0.1mm
    C
    0.2mm
    D
    0.5mm
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    `sqrt(2) A`
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    `2 A`
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    3A
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  • Beats are produced when two progressive waves of frequency 256 Hz and 260 Hz superpose. Then the resultant amplitude changes periodically with frequency of

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    256 Hz
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