Fundamentals of Light and Reflection

Vocabulary flashcards covering definitions and key terms related to the basic properties of light and its reflection.

Light

A form of energy that produces the sensation of vision.

Dual Nature of Light

The ability of light to exhibit both particle and wave behaviors.

Photon

The fundamental particle of light; more photons give brighter light, fewer give dim light.

Wave Nature of Light

A non-mechanical transverse wave that can travel through a vacuum.

Speed of Light (c)

3 × 10^8 m/s in a vacuum.

Rectilinear Propagation

The tendency of light to travel in straight lines when no matter obstructs it.

Light Ray

A single straight line path consisting of many photons.

Beam of Light

A collection of several light rays.

Reflection of Light

The bouncing back of light into the same medium after striking a surface.

Specular (Regular) Reflection

Reflection from a smooth surface where reflected rays are parallel, producing a clear image.

Diffuse (Irregular) Reflection

Reflection from a rough surface where reflected rays are not parallel, producing a distorted image.

Particle Property of Light

The aspect of light that treats it as discrete photons, emphasizing its particle behavior.