why do the sky apear blue in color during day time?

Answer 1

The sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths. Where the sunlight is nearly tangent to the Earth's surface, the light's path through the atmosphere is so long that much of the blue and even yellow light is scattered out, leaving the sun rays and the clouds it illuminates red, at sunrise and sunset.

Scattering and absorption are major causes of the attenuation of radiation by the atmosphere. Scattering varies as a function of the ratio of the particle diameter to the wavelength of the radiation. When this ratio is less than about one-tenth, Rayleigh scattering occurs in which the scattering coefficient varies inversely as the fourth power of the wavelength. At larger values of the ratio of particle diameter to wavelength, the scattering varies in a complex fashion described, for spherical particles, by the Mie theory; at a ratio of the order of 10, the laws of geometric optics begin to apply.

Individual gas molecules are too small to scatter light effectively. However, in a gas, the molecules move more or less independently of each-other, unlike in liquids and solids where the density is determined the molecule's sizes. So the densities of gases, such as pure air, are subject to statistical fluctuations. Significant fluctuations are much more common on a small scale. It is mainly these density fluctuations on a small (tens of nanometers) scale that cause the sky to be blue.

Answer 2

It's due to a phenomenon called Rayleigh scattering. When light encounters particles much smaller than the wavelength of light, the light scatters. Atmospheric gas is an enormous resevoir of such particles. Short wavelengths scatter the most effectively, and blue has a short wavelength, so the blue light scatters and appears to fill the sky. Note that violet has a shorter wavelength than blue, but the human eye is not very good at seeing violet, so blue appears to dominate instead.

Answer 3

The minerals in the ocean waters gives the water a blue hue that reflects into the sky. Same reason why the sky in Mars look red.

Answer 4

It's due to wavelength of light passing through the atmosphere NOT reflection from the ocean. Isn't the freakin' sky blue in Kansas??? 2000 miles from the ocean?

Answer 5

Why is the sky blue? Because the arc of the earth causes the atmosphere to absorb all but the shorter wavelengths of light.

Answer 6

The atmosphere is a thick place. Because of this thicness the sunlight passes through it and bends to various wavelenghts. That's why it is sky blue during morning.

Answer 7

The light is refracted/reflected through the water drops in the air.

The light is bent towards the blue end of the visible light.

Answer 8

The sky reflects the ocean.

Answer 9

B'coz of Raman effect proposed by C.V. Raman. Of seven colours of light from sun, the blue light is scattered the most.

Answer 10

because the wind in the sky can't absorbed the blue colour