A 15-M String Is Held Fixed at Both Ends

question 40

Multiple Choice

A 1.5-m string is held fixed at both ends.When driven by a 180-Hz source,the string vibrates in 3 distinct segments.What is the natural fundamental frequency of the string?

• A) 30 Hz
• B) 60 Hz
• C) 90 Hz
• D) 540 Hz