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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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