Two Harmonic Waves Traveling in Opposite Directions Interfere to Produce

question 66

Multiple Choice

Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 4 sin (5x) cos (6t) where x is in m and t is in s. What is the approximate frequency of the interfering waves?

• A) 3 Hz
• B) 1 Hz
• C) 6 Hz
• D) 12 Hz
• E) 5 Hz

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