Question

consider the diagram below in order to answer questions #1-2.

1. the wavelength of the wave in the diagram above is given by letter ______.
2. the amplitude of the wave in the diagram above is given by letter ______.

Explanation:

Step1: Recall wavelength definition

Wavelength is the distance between two consecutive identical points (e.g., crests or troughs) on a wave. In the diagram, letter A represents the distance between two consecutive crests, so it's the wavelength.

Step2: Recall amplitude definition

Amplitude is the maximum displacement of a point on the wave from its rest position. Letter B (or D, but B is more clearly the maximum from rest) shows the distance from the rest line to a crest (or trough), so it's the amplitude. For question 1, the wavelength is A. For question 2, the amplitude is B (or D, but typically the labeled B is the amplitude here).

Answer:

1. A (wavelength is the distance between two consecutive crests, labeled A)
2. B (amplitude is the maximum displacement from rest, labeled B)