stationary longitudinal waves

Question 1

How is a longitudinal stationary wave formed in a one sided closed tube

Answer 1

1. blow air into the tube
2. waves are reflected back from the closed end and interfere to create a stationary wave
3. Make sure the length of the tube is adjusted so that it creates a wave which has an antinode at the open end and a node at the closed end.
4. 3RD STEP MUST BE MET FOR IT TO PRODUCE A STATIONARY LONGTIDUNAL WAVE

SOUND = LONGITUDINAL

Question 2

air draw the first harmonic, 2nd harmonic, the 3rd harmonic

of a one sided closed tube

for stationary longtidunal wave

Answer 2

done ?

Question 3

whats the pressure at a displacement node for a stationary longitudinal wave

Answer 3

a displacement node always has an antinode pressure

node = highest pressure

Question 4

whats the pressure at a displacement anti-node for a stationary longitudinal wave

Answer 4

pressure does not change much

Question 5

how are stationary waves formed in open tube both ways

Answer 5

sound wave is will also be reflected at the open ends

Question 6

What type of nodes are at either side of a open tube both ways

and what type of nodes are at a 1 sided closed tube

Answer 6

at a tube with both ends open = anti node and antinode

at a tube with one end closed = anti node and then node

Question 7

air draw 1st,2nd,3rd harmonics of sound waves which are in open end tubes

Answer 7

1st harmonic has a node at the middle
2nd harmonic has nodes at 2 middles

etc