00:02
Here, the harmonic depicted for an open bottom tube which is open from one end only can be identified as we know that these tubes which are open at only one end and the other end is closed have odd harmonic, not no even harmonic exist, third harmonic and similarly fifth and so on.
00:38
Now, how will we identify that this first harmonic? it has one node and one antinode for open bottom tube.
00:53
And third harmonic has two node and two anti -node.
00:58
Similarly, two notes and two anti -nodes.
01:02
Similarly, fifth harmonic will have three nodes and three anti -nodes.
01:07
From the given figure, we can clearly see there are.
01:10
Are two nodes and two antinodes.
01:14
Therefore, it is a third harmonic.
01:17
This is the answer for part a.
01:20
It is a third harmonic represented.
01:25
From the given diagram, it is clear that the weave inside the tube is in number, the wave inside the tube is three -fourth only...