Question

1. can be measured from crest to crest or trough to trough in a transverse wave.

a wavelength
b wave speed
c amplitude
d frequency

Explanation:

Wavelength is defined as the distance between two consecutive crests or two consecutive troughs in a wave. Wave speed is about how fast the wave travels, amplitude is the maximum displacement from the equilibrium position, and frequency is the number of waves passing a point per unit - time.

Answer:

A. Wavelength