Why is the Sky Blue? - Atmospheric Colors

The video explains why the sky is blue by discussing the nature of light from the sun, which is white light composed of various colors. When white light passes through a prism, it splits into a spectrum of colors, each with different wavelengths. Red light has the longest wavelength, while violet has the shortest. Blue light's wavelength is such that it gets scattered by the gases in Earth's atmosphere, a phenomenon known as Rayleigh scattering, making the sky appear blue.

What is white light composed of?

• Only red light

• Only blue light

• Multiple colors

• A single color

What happens to white light when it passes through a glass prism?

• It remains unchanged

• It splits into a spectrum of colors

• It turns into a single color

• It becomes invisible

Which color of light has the longest wavelength?

• Violet

• Red

• Green

• Blue

Why does blue light scatter in the atmosphere?

• Because it is the heaviest

• Because it has the longest wavelength

• Because it is absorbed by gases

• Because its wavelength is just right to bounce off gases

What is the effect called when blue light is scattered by the atmosphere?

• Diffraction

• Rayleigh scattering

• Reflection

• Refraction