why does sun appear red during sunrise and sunset
The red colour in the sky at sunset (and sunrise) is due to an effect called Rayleigh scattering. There is a similar form of scattering called Mie scattering which is responsible for the white colour of clouds.
Particles in our atmosphere that are approximately the same size as the wavelength of visible light cause the white light from the sun to scatter and split into individual components. Oxygen and Nitrogen (the main components of our atmosphere) scatter violet and blue light due to their small size. This is why the sky appears to be blue in the day time, especially at midday when the Sun is closest to us.
During sunrise and sunset the distance that the light has to travel from the Sun to an observer is at its greatest. This means the a large amount of blue and violet light has been scattered so the light that is recieved by an observer is mostly of a longer wavelength and therefore appears to be read.
1) The temperature at noon is warmer than at sunrise and sunset
2) The sun itself is red at sunrise and sunset, but is yellow at noon; it has nothing to do with the effect of the atmosphere
3) Red light is easily transmitted through the air since its frequency is the lowest. At noon, sunlight travels through the least amount of atmosphere with little scattering of high-frequency light to the surface.
4) Red light is easily scattered through the air since its frequency is the lowest. At noon, sunlight travels through the least amount of atmosphere with little transmission of high-frequency light to the surface.
5) the sun is colder at sunrise and sunset than at noon.
HOPE THIS HELPS YOU!!! ^.^
the medium near the sun is lighter and some is thicker at the outer side of it.
it has to go a long distance.this makes most of the light of shorter wavelength scatter and the larger particles travel to our eyes.
tats why we see it red.
hope it helps!!!