A student is using a tuning fork to find lengths at which resonance occurs in a tube. The student finds the two shortest lengths of the air column at which resonance occurs. The shortest length is 15.3 cm, and the second shortest length occurs at a length of 45.9 cm.
a) Draw the standing wave pattern of the two shortest lengths at which resonance occurs.
b) Assuming the speed of sound in the air is 343 m/s, what is the frequency of the tuning fork?