Waves and Light

The trough is the lowest point of a wave.

A transparent material allows light to pass through it without scattering.

An opaque material does not allow any light to pass through it.

Amplitude is the height of the wave from its rest position to its crest or trough.

The crest is the highest point of a wave.

Wavelength is the distance between two consecutive crests or troughs in a wave.

A translucent material allows some light to pass through but scatters it, making objects behind it appear blurry.

Light passes through a transparent object and can be seen clearly on the other side.

Light is absorbed or reflected by an opaque object, and cannot pass through.

Glass is an example of a transparent material.