Question

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​

Answer 1

Answer:

During the sunrise the sun is set close to the Earth’s horizon, and therefore light travels a longer distance through the atmosphere of the Earth. Particles suspended in the air distribute the light in shorter wavelengths such as blue. The long wavelength of the light that comes through the Earth is red colour. This is the reason sun appear reddish early in the morning.

During the sunrise the sun is set close to the Earth’s horizon, and therefore light travels a longer distance through the atmosphere of the Earth. Particles suspended in the air distribute the light in shorter wavelengths such as blue. The long wavelength of the light that comes through the Earth is red colour. This is the reason sun appear reddish early in the morning.The astronaut will not observe this phenomenon on the moon’s surface, because the moon has no atmosphere. Therefore no light will be distributed, and darkness will arise.

Answer 2

Explanation:

In early morning, the sun is at the farthest distance from earth surface. When the white light from passes through the earth's atmosphere, light with smaller wavelength (blue) gets scattered from the dust particles in the atmosphere and only red light reaches the human eye lens. Thus the sun appears red in early morning.

This phenomenon cannot be seen by an astronaut on the moon because there is no atmosphere on moon to scatter the light.

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