Why does the sun appear reddish early in the morning? will this phenomenon be observed by an observer on the moon? justify your answer with a reason?
Answers
Explanation:
During sunrise, the light rays coming from the Sun have to travel a greater distance in the earth's atmosphere before reaching our eyes. In this journey, the shorter wavelengths of lights are scattered out and only longer wavelengths are able to reach our eyes. Since blue colour has a shorter wavelength and red colour has a longer wavelength, the red colour is able to reach our eyes after the atmospheric scattering of light. Therefore, the Sun appears reddish early in the morning.
Answer:
Early in the morning, the sun is near the horizon, sunlight reaches us after covering a longer distance through thick layers of atmosphere. So the most of the blue light and other light of shorter wavelengths are scattered away by the particles in the atmosphere. The light that reaches us is of longer wavelengths such as red light thus giving a reddish appearance.
This phenomenon will not be observed by an observer on the moon because of the absence of atmosphere on the moon.