Why the colour of sky become blue during day become black during night become reddish before&after sunset?

Answer 1

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Answer 2

Sky is blue during daytime due to Dispersion of light. Blue is scattered most from white light. It is black during night to the human eye due to absence of sunlight that causes the white light to be dispersed into various colours.
During Sunsets, the daylight charges the dust particles that store the charge for sometime after the Sun sets. This results in the reddish sky.
At the North and South poles the sky turns Purple during Sunsets due to Aurora Australis, magnetically charged dust particles that absorb sunlight during the daytime

Answer 3

The hemisphere facing the sun gets more light, turning the black/blue sky of the universe lighter during day. The opposite of that happens during night, making it darker. And the atmosphere spreads air and light around because if it didn't, one spot would be blue, the rest would be black.

Answer 4

The light from the Sun is the cause of course. Water vapor in the air with the light shinning through it gives the blueish hue. When the sun goes down or rises, it shining along the horizon. Dust, pollen, and other items in the air defract the light more, making the reddish hue (the wavelength is filtered by the dust.) And of course at night the sun is not shining on you, so little light reaching you is being defracted.

Answer 5

as we know sun contains electromagnetic waves.those waves have different wavelength and frequency and every frequency have a different colour .electromagnetic waves have seven colours. during the day a type of frequency is reflected from the atmosphere that type has a blue colour thats how its in the day.
during night there is no any any electromagnetic wave which is to be reflected and as we know black colour means there is no colour . during sunset and sunrise the waves goes to the earth through an angle causing some sort to waves to reflect until they come to the prober angle the colour will change to blue which means it the type of wave will change

Answer 6

The sky turns into various colours due to dispersion of light. During evenings, the dust particles store solar charge that emits red light

Answer 7

"...Why the colour of sky become blue during day..."
Sunlight interacts with certain elements in Earth's atmosphere that cause the blue color

"...become black during night..."
No sunlight. Duh!

"...become reddish before&after sunset..."
Sunlight is passing through more dust and smog at sundown than at earlier times throughout the day.

Answer 8

Blue- A color most absorbed by the atmosphere during the daylight hours....blue bounces around as it enters the atmosphere and does not pass on through as the other colors of the white light spectrum. Blue, basically gets caught up in the air and when you look up, you see it.

Black- it's night, in the absense of the wide ray of light emitted by the sun, it appears black. all color rays absorbed into your eyes (red, orange, yellow, green, blue, indigo, violet) at the same time gives your brain the color white.....in the absense of all these colors, your brain sees black.

Red- In the morning and night the sunlight passes through more atmosphere than during the rest of the day. As light travels through the atmosphere it disperses. The red light you see at night is least absorbed by the atmosphere allowing it to pass through to your eyes.

Answer 9

the blue color's due to
i)the pollutants of air in the different layers of the atmosphere
[ u wouldn't find any blue color if u seee from the moon]
ii) the dispersion of blue light from the visible spectrum

it's black at night as therre is no light
if u r in space sky is black bcoz there's no polution

reddish b4 n after sunset bcoz of dispersion of red light from visible spectrum
bcoz af this sun appears as though it's larger at that time

Answer 10

it is all because of reybug,s scattring formula.
1/lamda raise to the power4. now u can guess easily.