Light Reflection & Vision

Front

What is light reflection?

Back

Light reflection is the change in direction of light when it bounces off a surface.

Front

What is the best reflector of light?

Back

Shiny metal is considered the best reflector of light.

Front

What is the principle behind how light changes direction?

Back

Light changes direction primarily through reflection.

Front

What is a mirror used for in terms of light?

Back

A mirror is used to reflect light and can be aimed to direct it towards a specific target.

Front

What is a lens and its function?

Back

A lens is a transparent optical device that focuses or disperses light rays through refraction.

Front

What are fiber optics?

Back

Fiber optics are thin strands of glass or plastic that transmit light signals for faster Internet connections.

Front

What is the law of reflection?

Back

The law of reflection states that the angle of incidence is equal to the angle of reflection.

Front

What is the difference between reflection and refraction?

Back

Reflection is the bouncing back of light from a surface, while refraction is the bending of light as it passes through different media.

Front

What is total internal reflection?

Back

Total internal reflection occurs when light hits a boundary at an angle greater than the critical angle, causing it to reflect entirely back into the medium.

Front

What is the critical angle in optics?

Back

The critical angle is the angle of incidence above which total internal reflection occurs.