Primary Colors of Light Quiz

What seven colors make up white light?

A red filter allows all colors of light to pass through.

What occurs when white light passes through a green filter?

When light passes through a red filter after going through a green filter, ____ light will pass through.

Match the filters with their corresponding transmitted light:

Which of the following is NOT one of the primary colours of light?

When red and blue light are combined, they produce cyan.

What three primary colours of light can be combined to create white light?

The colours created by adding red and green light is __________.

How many different colours can most people perceive on screens?

Coloured filters allow only light of their own color to pass through while absorbing all other colors.

Match the following combinations of primary colours with the resulting colours:

What visual technology combines red, green, and blue light to produce images on screens?

Primary Colors of Light

Light has three primary colors: red, green, and blue
These colors cannot be created by mixing other colors
Combining these primary colors creates other colors

Combining Primary Colors of Light

Red + Green = Yellow
Red + Blue = Magenta
Blue + Green = Cyan
Red + Green + Blue = White

Color Production in Displays

Computer screens, TVs, and smartphones use red, green, and blue light (RGB) to create a wide spectrum of colors, reflecting human vision. Most standard displays can show 256 colors based on 8-bit color depth, enhancing the viewing experience across various media and applications.

Subtracting Colors of Light

Filters remove specific colors from light, allowing only certain wavelengths to pass through
The traffic lights use filters to transmit only red or yellow or green light, absorbing all other colours
Colored filters in stage lights and photography allow for different color effects
Using a sequence of filters can completely block transmission of light

Color Filter Example

A red filter transmits only red light, absorbing all other colors from a white light source
Similarly, other colored filters absorb all colors except the one they transmit

Light Filter Interactions

The final color produced by combining filters depends on which colors are absorbed or transmitted at each step
It is possible to use a sequence of filters to completely block light if the colors absorbed are part of an earlier transmission

Test your knowledge on the primary colors of light and how they combine to form other colors. This quiz covers light color production in various displays and the use of color filters. Challenge yourself to understand the fundamentals of light and color mixing.