Light and Lenses

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, caused by a change in its speed.

Front

What is the main difference between refraction and diffraction?

Back

Refraction involves the bending of light when it enters a new medium, while diffraction involves the bending and spreading of light around obstacles.

Front

What happens when light is reflected?

Back

When light is reflected, it bounces off a surface instead of passing through it.

Front

What is a prism?

Back

A prism is a transparent optical element that refracts light, breaking it into its component colors.

Front

What is the visible spectrum?

Back

The visible spectrum is the range of wavelengths of light that can be seen by the human eye, typically from red to violet.

Front

What is absorption in terms of light?

Back

Absorption is the process by which light is taken in by a material and converted to other forms of energy, such as heat.

Front

What is transmission in optics?

Back

Transmission is the passing of light through a material without being absorbed or reflected.

Front

What is the role of lenses in optics?

Back

Lenses are curved pieces of glass or plastic that refract light to focus or disperse it.

Front

What is the difference between a convex lens and a concave lens?

Back

A convex lens converges light rays to a point, while a concave lens diverges light rays.

Front

What is total internal reflection?

Back

Total internal reflection occurs when light hits a boundary at a steep angle and is completely reflected back into the medium.