Two Waves Are Described By: Y1 = 6 Cos 180t

question 15

Multiple Choice

Two waves are described by: y1 = 6 cos 180t and y2 = 6 cos 186t, (both in metres) .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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