A String That Is 2 $18 \mathrm {~m} / \mathrm { s }$

question 153

Multiple Choice

A string that is 2.0 meters long is fixed at both ends and tightened until the wave speed is $18 \mathrm {~m} / \mathrm { s }$ What is the frequency of the standing wave shown in the figure?

• A)27 Hz
• B)54 Hz
• C)81 Hz
• D)110 Hz

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