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← ScienceWhich acoustic phenomenon causes increased signal strength in underwater sonar directional arrays?
A)Constructive wave interference buildup via phased emissions✓
B)Boundary refraction reduces intensity losses
C)Frequency-selective absorption filters unwanted noise
D)Wave dispersion reverses propagation impedance
💡 Explanation
Constructive wave interference occurs because phased transducers emit coordinated sound pulses, intensifying signals in specific directions via superposition strengthening, therefore boosting the array's effective range rather than mere directional change.
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