Two sound sources s1 and s2 of same frequency, are situated at a distance 2 m and 4 m from a point P respectively. At P the intensity of sound is 1 W/m2 if only source s1 is put on, and the intensity is 4 W/m2 if only source s2 is put on.Find the resultant intensity in W/m2, at the point P when both the sources are put on together knowing that s2 is ahead in phase of s1 by π/2. Take wavelength of sound as 4m.
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