Why sky appears blue?

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Answer

Gases and particles in Earth's atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

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The Short Answer: Gases and particles in Earth's atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

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Sun produces white rays which contains all the colours with different wavelengths but blue being the fastest with short wave length it disperses faster than all other colours so sky appears blue in day time. red being the slowest with larger wavelength it disperses slow so sky appears red at the time of sunset.

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Because it doenst appear black..hahah

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Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

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The appears to be blue because the reflection of sunlight from the water vapour in the environment.HOPE HELP U

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Sky appears blue due to the reflection of sunlight through water drops in the environment.

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Why Does the Sky Appear Blue?

The phenomenon of why the sky appears blue is a result of the scattering of sunlight by molecules in the Earth's atmosphere. This scattering process is known as Rayleigh scattering, named after the British physicist Lord Rayleigh who first explained it in the late 19th century.

The Science Behind Rayleigh Scattering:

Rayleigh scattering occurs when light interacts with particles or molecules that are smaller than the wavelength of the light. In the case of the sky, the main molecules responsible for the scattering are nitrogen and oxygen, which are abundant in the Earth's atmosphere.

1. Sunlight Composition:

Sunlight is composed of a spectrum of colors, ranging from violet to red. Each color corresponds to a different wavelength, with violet having the shortest wavelength and red having the longest.

2. Scattering of Shorter Wavelengths:

As sunlight enters the Earth's atmosphere, the shorter blue and violet wavelengths are scattered more than the longer red and orange wavelengths. This is because the smaller molecules in the atmosphere (like nitrogen and oxygen) are more effective at scattering shorter wavelengths.

3. Blue Light Dominance:

Due to the scattering process, the blue and violet light is scattered in all directions by the molecules in the atmosphere. This scattered blue light eventually reaches our eyes from all regions of the sky, creating the appearance of a blue sky.

4. Path of the Sunlight:

The path of sunlight also plays a role in the color of the sky. When the sun is higher in the sky, the light has to pass through a smaller portion of the atmosphere, resulting in less scattering. As a result, the sky appears to be a deeper blue during midday compared to sunrise or sunset when the sunlight has to pass through a larger portion of the atmosphere, causing more scattering.

5. Other Factors:

Various atmospheric conditions can affect the color of the sky. For example, particles and pollution in the air can scatter sunlight in different ways, leading to variations in the color of the sky. During sunrise or sunset, the sky often appears more red or orange due to the scattering of longer wavelengths by dust and other particles in the lower atmosphere.

In conclusion, the sky appears blue due to the scattering of shorter blue and violet wavelengths of sunlight by the molecules in the Earth's atmosphere. This phenomenon, known as Rayleigh scattering, is responsible for the captivating blue color that we observe during daylight hours.

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