00:01
So we're asked about a wave and the frequency of the wave is doubled.
00:06
What happens to the wavelength as a result and what happens to the speed of that wave? we're going to derive the speed of a wave.
00:14
We know that speed is the distance or the displacement traveled per unit time.
00:24
We have to choose our values carefully to come up with an equation.
00:28
So we know a few things from our previous videos.
00:32
The period, which is the time it takes for one cycle.
00:41
And also we have the wavelength, which is the length of a cycle.
01:03
Time is units of seconds and wave lengths and units of meters.
01:14
So if we were to have a wave pass or traverse for one period, one full period, that means there would be one full cycle that travels.
01:25
And in one full cycle, there's a length of lambda that is passed.
01:31
So for this equation, we can write lambda as our displacement or our distance traveled and the period as the time traveled.
01:44
This is a correct expression...