Exploring Color and Refraction Concepts

Professor Dave explains the visible spectrum and the mnemonic ROYGBIV for remembering color order. He discusses how objects reflect certain colors and absorb others, leading to the colors we perceive. The video covers refraction, explaining how light bends when moving between media, and how prisms separate white light into colors. Additive and subtractive color mixing is explored, showing how different combinations of colors produce various results. The video concludes with a call to action for viewers to engage with the content.

What mnemonic helps us remember the order of colors in the visible spectrum?

• ROYGBIV

• RGB

• CMYK

• HSB

What happens to light when it hits an object and is not absorbed?

• It is reflected

• It is refracted

• It is transmitted

• It is scattered

Why does a leaf appear green?

• It emits green light

• It refracts green light

• It reflects green light

• It absorbs green light

What is the phenomenon called when light bends as it travels from one medium to another?

• Dispersion

• Diffraction

• Reflection

• Refraction

What causes the different colors to fan out when white light passes through a prism?

• Different angles of reflection

• Different angles of refraction

• Different angles of incidence

• Different angles of dispersion

Which are the additive primary colors?

• Red, Green, Yellow

• Red, Yellow, Blue

• Red, Green, Blue

• Cyan, Magenta, Yellow

What color do you get when you combine red and green light?

• White

• Blue

• Yellow

• Cyan

What is the complementary color of blue in the additive color system?

• Magenta

• Green

• Red

• Yellow

Which are the subtractive primary colors?

• Cyan, Yellow, Green

• Red, Yellow, Blue

• Red, Green, Blue

• Cyan, Magenta, Yellow

What color results from combining all three subtractive primary colors?

• Black

• White

• Green

• Yellow