00:01
Hello everyone, so i'll be solving this question for you.
00:04
In this question, the first thing that is that we have to find is the wave velocity for which we have been given that the length of the wave, the length of the slinky that is stretched across the two ends is 4 meter and the time taken is 5 .25 seconds.
00:33
Now this time is for the wave to travel from one end to the other and come back.
00:39
Right.
00:40
So essentially in this time, the wave travels 8 meters which is the length once you go from here to here and then you come back to the original position.
00:54
So you travel the 4 meter twice.
00:56
That is 8 meters and this is being done in 5 .25 seconds.
01:01
Therefore we can find the velocity pretty easily which is 8 meter divided by 5 .25 seconds and this comes out as 1 .52 meters per second so this is the speed of the wave which is 1 .52 meter per second question what we do is that we draw the same thing or we draw a wave representation of this linkie.
01:34
So let's say that these are the two ends.
01:38
Now this is very important to understand what are nodes and antinodes.
01:44
Let's say i have a wave like this.
01:51
So the points where the wave is meeting the axis, right? so these points that i have marked in bold red, these are the nodes and these points...