Resultant Intensity of Water-waves

AI Thread Summary
The problem involves two wave generators, S1 and S2, producing water waves with different intensities at a point P. S1 generates waves with intensity I, while S2 generates waves with intensity 3I. When both generators operate in phase, the resultant intensity at point P needs to be determined. The discussion hints at considering the phase relationship of the waves at P to find the correct resultant intensity. The possible answers for the resultant intensity are 0.5I, 2.0I, 4.0I, and 7.5I.
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Homework Statement


Two wave generators S1 and S2 produce water-waves of wavelength 4m. They are placed 4m apart in a water tank and a detector P is placed on the water surface 3 m from S1. (90 degree to S1S2, S2 to P is 5m)

When operted alone, S1 and S2 produce waves with intensity I and 3I at P respectively. When the generators are operating together and in phase, what is the resultant intensity at P?


Homework Equations





The Attempt at a Solution


A. 0.5I B. 2.0I C. 4.0I D 7.5I
 
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Well, what do you think? Hint: Are the waves at P in phase, out of phase, or what?
 
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