Finding speed of sound from resonance tube interference

[zuloon]

Help with lab - "Speed of Sound in Air"

Homework Statement

https://www.learningpoint.org/courses/1/C37230/content/_259415_1/Lab%20-%20Speed%20of%20Sound%20in%20Air_1.pdf?bsession=2880270&bsession_str=session_id=2880270,user_id_pk1=7284,user_id_sos_id_pk2=1,one_time_token=

Problem #1

Homework Equations

N/a (I think)

The Attempt at a Solution

No idea. I know that a node is a point of destructive interference, but I don't get the problem at all.

 

[rl.bhat]

Please read about the standing waves. And find the definition of node and anti nodes.