00:01
So, for the first subpart, the amplitude is half the distance.
00:08
The amplitude is half the distance between the highest point and the lowest point.
00:12
So, a is equal to 12 by 2, that is 6 centimeters.
00:19
The b subpart, the time taken by the wave to travel a distance equal to its wavelength, time taken is the period of the wave.
00:37
So the horizontal distance between the highest point and the neighboring lowest point of the wave is half the wavelength.
00:44
So, the time elapsed when the waves highest and lowest points, the time elash between the waves highest and lowest points is half the period that is t by 2, that is 1 .5 seconds.
00:58
So t equals to 3 seconds.
01:02
And for the c subpart, frequency is the reciprocal of time period that is 1 by 3 hertz.
01:09
For d subpart, speed of the wave is equals to lambda into f.
01:15
So lambda is 6 meters into 1 by 3 hertz...