Question

Amplitude is?
A) The number of waves in a certain amount of time
B) The noise floor acceptable in recording
C) The distance between two identical points of a wave
D) The distance between the top or bottom of a wave and the center of the wave

Answer 1

D is the correct answer.

In the badly drawn diagram attached, you will find the yellow represents wavelength, which is the distance between identical points on consecutive waves.

The green represents the amplitude, which is the distance between the origin (middle) and crest/trough (top/bottom)

Answer 2

D is the correct answer