The Science Of Color Perception And Light Reflection

Professor Dave explains the visible spectrum and how colors are perceived through reflection and absorption. He discusses refraction, how prisms separate light, and the difference between additive and subtractive color mixing. The video concludes with a call to action for viewers to subscribe and support his channel.

What does the mnemonic ROYGBIV help us remember?

• The primary colors of light

• The colors of the ocean

• The types of electromagnetic waves

• The order of colors in a rainbow

Why does a leaf appear green to our eyes?

• It reflects green light and absorbs all others

• It absorbs green light and reflects all others

• It emits green light

• It has a natural green pigment

What happens to light when it moves from air to water?

• It speeds up

• It bends and changes direction

• It remains unchanged

• It disappears

How does a prism separate white light into different colors?

• By reflecting all colors

• By absorbing some colors

• By speeding up all wavelengths equally

• By slowing down different wavelengths at different rates

What are the additive primary colors?

• Red, green, blue

• Cyan, magenta, yellow

• Red, yellow, blue

• Orange, purple, green

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

• Green

• Yellow

• Red

• Purple

What is the result of combining red and green light?

• Blue light

• Yellow light

• White light

• Black light

What color do you get when you mix blue and yellow paint?

• Orange

• Purple

• Green

• Red

What happens when all subtractive primary colors are combined?

• They create white

• They create black

• They create green

• They create red

Which of the following is a subtractive primary color?

• Red

• Blue

• Green

• Cyan