Colour

The video explores Isaac Newton's 1666 experiment with light and a prism, revealing that white light is composed of various colors. It explains how light behaves as waves, undergoing reflection and refraction, with different wavelengths refracting differently. The perception of color is discussed, highlighting how rainbows form and how materials interact with light, either reflecting or absorbing it. The video also covers how objects appear colored based on the wavelengths they reflect, with examples like black absorbing all light and white reflecting it.

What did Isaac Newton discover about white light using a prism?

• It is composed of a single color.

• It is composed of multiple colors.

• It cannot be split into different colors.

• It travels faster than sound.

How does the wavelength of light affect its refraction?

• All wavelengths refract equally.

• Shorter wavelengths refract more.

• Wavelength does not affect refraction.

• Shorter wavelengths refract less.

Why do we perceive different colors?

• Due to the reflection of sound waves.

• Due to the different wavelengths of visible light.

• Because light travels in straight lines.

• Because of the different speeds of light.

Why are solar panels typically dark in color?

• To reflect all wavelengths of light.

• To absorb all wavelengths of light.

• To emit light energy.

• To refract light into different colors.

Why are buildings in hot countries often painted white?

• To absorb more sunlight.

• To reflect sunlight and keep cool.

• To refract sunlight into rainbows.

• To emit heat energy.