Why is the Sky Blue? - Atmospheric Colors

The video explains why the sky is blue. It starts by discussing white light from the sun, which is 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, primarily nitrogen and oxygen. This scattering, known as Rayleigh scattering, causes the sky to appear blue.

What is white light composed of?

• Multiple colors

• A single color

• Only blue light

• Only red light

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

• It becomes invisible

• It turns into a single color

• It splits into a spectrum of colors

• It remains unchanged

Which color of light has the longest wavelength?

• Green

• Violet

• Red

• Blue

Why does blue light scatter more in the atmosphere?

• It is the only color present in sunlight

• Its wavelength is just right to bounce off gases

• It is absorbed by gases

• It has the longest wavelength

What is the phenomenon called when blue light is scattered in the atmosphere?

• Diffraction

• Rayleigh scattering

• Reflection

• Refraction