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Two radio antennas A and B radiate in phase at a frequency of 15 MHz. Antenna...

Two radio antennas A and B radiate in phase at a frequency of 15 MHz. Antenna B is 115 m to the right of antenna A. Consider point Q along the line connecting the antennas, a horizontal distance x to the right of antenna A.

Part A

What is the smallest nonzero value of x for which there will be constructive interference at pointQ?

Part B

What is the smallest nonzero value of x for which there will be destructive interference at point Q?

 

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