Understanding Light and Optics in Sight

These flashcards focus on key terms and definitions related to light, vision, and optical phenomena.

Light Waves

Electromagnetic waves that are visible to the human eye and play a crucial role in vision.

Optical Illusion

A visual perception that differs from reality, often caused by the way our brain interprets what our eyes see.

Phenomenon

An observable event or occurrence, especially one that can be scientific.

Observation

The action or process of closely monitoring something in the natural world to gather data and evidence.

Model

A simplified representation of an idea, process, or system used to explain phenomena or predict outcomes.

Pixel

The smallest unit of a digital image or display, which combines with others to form a complete picture.

Absorption of Light

The process by which light is taken up by an object, preventing it from being reflected or transmitted.

Scattering of Light

The process whereby light is forced to deviate from a straight trajectory due to irregularities in the medium.

Reflection of Light

The bouncing back of light waves when they hit a reflective surface.

Transmittance

The measure of how much light passes through an object or material.

Condition for Sight

The necessary factors, such as light and a clear line of sight, required for a person to see an object.

Eye as a Light Sensor

The role of the eye in detecting light, which allows for the perception of images.

Nonvisible Light

Light that is outside the visible spectrum, such as infrared or ultraviolet light, which cannot be seen by the human eye.

Illusion

A misleading or deceptive perception, often caused by the interplay of light and visual perception.