Understanding Colors and Light Spectrum

The video tutorial explores the concept of color perception and the visible light spectrum. It begins with a question about why certain colors like brown, gray, and pink are not in the visible spectrum. Physicist Robin Marchbanks explains that color perception is based on the receptors in our eyes, which detect red, green, and blue. The video demonstrates how different colors can be created by mixing these primary colors of light and explains the subtractive color mixing process used in inkjet printers. The tutorial concludes by inviting viewers to submit their questions.

Which colors are traditionally recognized as part of the visible light spectrum?

• Red, Orange, Yellow, Green, Blue, Indigo, Violet

• Red, Green, Blue, Brown, Gray, Pink

• Red, Yellow, Green, Blue, Black, White

• Red, Orange, Yellow, Green, Blue, Black, White

What determines the way humans perceive color?

• The type of light source

• The receptors in our eyes

• The distance from the object

• The size of the object

Which colors do the receptors in human eyes detect?

• Red, Blue, Yellow

• Red, Green, Yellow

• Red, Green, Blue

• Red, Yellow, Blue

What color is produced when red and green light are combined?

• Yellow

• Cyan

• Magenta

• White

What happens when all three primary colors of light (red, green, and blue) are combined?

• They produce white

• They produce cyan

• They produce black

• They produce yellow

What color is produced when red is subtracted from white light?

• Cyan

• Yellow

• Magenta

• Blue

Which colors are used as subtractive primary colors in inkjet printers?

• Red, Yellow, Blue

• Green, Yellow, Blue

• Cyan, Magenta, Yellow

• Red, Green, Blue

What is the result of mixing cyan, magenta, and yellow pigments together?

• Brown

• Gray

• Black

• White

What is the purpose of using subtractive primary colors in printers?

• To create a wider range of colors

• To match the colors seen by human eyes

• To reduce the cost of printing

• To simplify the printing process

What color can be created by mixing the right proportions of red, blue, and green light?

• Gray

• Any color

• Brown

• Black