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A progressive wave of frequency 500 Hz is travelling with a speed of 330 m/s in air. The distance between the two points which have a phase difference of $30^{\circ}$ is

$\begin {array} {1 1} (1)\;0.11\: m & \quad (2)\;0.055\: m \\ (3)\;0.22\: m & \quad (4)\;0.025\: m \end {array}$

1 Answer

(2) 0.055 m
answered Nov 7, 2013 by pady_1
 

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