❤️Hello guys ❤️
Here is your today’s question
✅Speech on ‘why sky is blue??’
Hope you will answer early and correct
Answer the question easy words and properly plz............
Answers
A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.
The white light from the sun is a mixture of all colours of the rainbow. This was demonstrated by Isaac Newton, who used a prism to separate the different colours and so form a spectrum. The colours of light are distinguished by their different wavelengths. The visible part of the spectrum ranges from red light with a wavelength of about 720 nm, to violet with a wavelength of about 380 nm, with orange, yellow, green, blue and indigo between. The three different types of colour receptors in the retina of the human eye respond most strongly to red, green and blue wavelengths, giving us our colour vision.
hope its helpful for you
please mark it as a brainliest
The sky is blue because of the way sunlight interacts with our atmosphere.
If you’ve ever played with a prism or seen a rainbow, then you know light is made up of different colours. The name “ROY G. BIV” helps us remember these colours: red, orange, yellow, green, blue, indigo, and violet.
These colours make up just a tiny portion of the electromagnetic spectrum, which includes ultraviolet waves, microwaves, and radio waves. This means the invisible waves that cause sunburns, allow us to heat-up our leftovers, and let us listen to the radio are all forms of light.
Light moves as waves of different lengths: some are short, making bluer light, and some are long, making redder light. As sunlight reaches our atmosphere, molecules in the air scatter the bluer light but let the red light pass through. Scientists call this Rayleigh scattering.
When the Sun is high in the sky, it appears its true colour: white. At sunrise and sunset, we see a much redder sun. This is because the sunlight is passing through a thicker layer of our atmosphere. This scatters the blue and green light along the way, allowing the redder light to pass through and illuminate the clouds in a beautiful array of red, orange, and pink.
Rayleigh scattering can affect how we see the Moon. When the Moon passes through the shadow of the Earth during a total lunar eclipse, blue and green light is scattered in the Earth’s atmosphere, letting red light pass through. Our atmosphere acts a like a magnifying glass, refracting (bending) the red sunlight onto the Moon. This can give it an eerie dark red hue.
For this reason, many cultures - including some Australian Aboriginal groups - associate lunar eclipses with blood.
Rayleigh scattering works on other planets, too. Did you know that the sky on Mars is also blue? (When there are no big storms kicking red dust into the air, that is!)
And finally, where does the sky start?
This is a tricky question. A bird flying 50 meters above us looks like it’s in the sky. But so do aeroplanes, and they fly more than 10,000 metres overhead.
“The sky” is just our atmosphere as we see it from underneath. A majority of our atmosphere extends about 16 km upward, and this is where most of the Rayleigh scattering happens.
If you’ve ever seen video of a rocket going into space, you can see the blue sky fade away to a black background as it climbs above the atmosphere.
hope it's helpful for you
please please mark me as brainliest.