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# Finding the Fundamental Frequency of a Standing Wave

APPH12-MEYIQ3

Consider the standing wave vibrating at the fourth harmonic graphed below. The string is attached at both ends.

If this wave travels down the string at a velocity of $10$ $\frac {m}{s}$, what is the fundamental frequency at which the rope vibrates?

A

$3.21$ $Hz$

B

$2$ $Hz$

C

$8$ $Hz$

D

$0.80$ $Hz$