Two Waves Are Described by Y₁ = 6 Cos 180t

question 68

Multiple Choice

Two waves are described by y₁ = 6 cos 180t and y₂ = 6 cos 186t, (both in meters) .
What effective frequency does the resultant vibration have at a point?

• A) 92 Hz
• B) 183 Hz
• C) 6 Hz
• D) 3 Hz
• E) 366 Hz

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