Problem: Two antennas A and B radiate electromagnetic waves that are in phase and have frequency f. Antenna A is 8.00 m to the left of antenna  B and point P is 5.00 m to the right of antenna B. What is the smallest value of the frequency  f for which the waves from the two antennas have destructive interference at point P?

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Two antennas A and B radiate electromagnetic waves that are in phase and have frequency f. Antenna A is 8.00 m to the left of antenna  B and point P is 5.00 m to the right of antenna B. What is the smallest value of the frequency  f for which the waves from the two antennas have destructive interference at point P?

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Based on our data, we think this problem is relevant for Professor Zhabinskaya's class at UCD.