Question

A tuning fork of frequency $480Hz$ is used to vibrate a sonometer wire having natural frequency $240Hz$. The wire will vibrate with a frequency of

• A. $240Hz$
• B. $480Hz$
• C. $720Hz$
• D. $willnotvibrate$

Answer 1

The correct option is B $480Hz$

The wire will vibrate with a frequency equal to that of frequency of external

periodic force produced by tuning force. So the wire will vibrate with a

frequency of 480 Hz.

Option B.