Question

Which statement best describes wavelength?

a) "Wavelength is the distance between two adjacent crests or troughs in a wave."
b) "Wavelength measures the speed of a wave."
c) "Wavelength determines the amplitude of a wave."
d) "Wavelength denotes the direction of a wave's propagation."

Answer 1

The wavelength of a wave is the distance between two adjacent crests or troughs in a wave.

Step-by-step explanation:

The wavelength of a wave is the distance between any two adjacent points that are in phase. It is the distance between two similar points on adjacent waves, such as two crests or two troughs. Wavelength is measured parallel to the direction of propagation, not perpendicular to it. Therefore, the best statement to describe wavelength is option a) "Wavelength is the distance between two adjacent crests or troughs in a wave."