Color and white light step by step

What is white light?

White light is made up of multiple colors combined, typically represented as a spectrum.

True or false: Light travels faster in water than in a vacuum.

False, because light travels fastest in a vacuum.

Difference between additive and subtractive color mixing.

Additive mixing combines colors by adding light (RGB), while subtractive mixing removes light (CMY).

What color do you get by mixing red and blue light?

You get magenta when red and blue light are mixed together.

Fill in the blank: The visible spectrum ranges from _____ to _____ nanometers.

The visible spectrum ranges from 380 to 750 nanometers.

What is refraction?

Refraction is the bending of light as it passes from one medium to another, changing speed.

How does a prism affect white light?

A prism disperses white light into its constituent colors, creating a spectrum.

True or false: The primary colors of pigment are red, green, and blue.

False, because the primary colors of pigment are cyan, magenta, and yellow.

What is the role of cones in human vision?

Cones are photoreceptors in the retina responsible for color vision.

Comparing wavelength and frequency.

Wavelength is the distance between waves, while frequency is the number of waves per second.

What happens to light when it strikes a black surface?

A black surface absorbs most of the light that hits it, reflecting little.

Name the three primary colors of light.

The three primary colors of light are red, green, and blue.

Fill in the blank: The spectrum of visible light is often represented as a _____ on paper.

The spectrum of visible light is often represented as a rainbow on paper.

What is dispersion?

Dispersion is the separation of light into its different colors due to varying speeds in a medium.