Find the minimum extra path travelled by wave from sources S₁, S2 in order, for observer at P, to detect maximum intensity if

Question

Find the minimum extra path travelled by wave from sources S₁, S2 in order, for observer at P, to detect maximum intensity if two sources are generating sound waves at frequency of 660 Hz in same phase. (Vsound = 330 m/s) 
0.5 m 
0.75 m 
1.25 m 
1m

Kunduz · Accepted Answer

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