A 40-G String Is 0

Multiple Choice

A 4.0-g string is 0.36 m long and is under tension.The string vibrates at 500 Hz in its third harmonic.What is the wavelength of the standing wave in the string?

A) 0.24 m
B) 0.36 m
C) 0.54 m
D) 0.72 m
E) 0.90 m