Wave D has the lowest amplitude. The highest point of a wave is called amplitude.
What is amplitude?
The distance between from the crest of a wave to the next crest is known as the amplitude. It is denoted by a.
The standard equation for the SHM is found as;
[tex]\rm y = asin \omega t[/tex]
Where, a represent the amplitude of the wave.
In the wave D it is observed that the distance from center axis to the highest point of the wave is smallest. Hence, wave D has the lowest amplitude.
To learn more about the amplitude, refer to the link;
https://brainly.com/question/8662436
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