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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.
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A clear cloudless day-time sky is blue because molecules in the air sc...
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.
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A clear cloudless day-time sky is blue because molecules in the air sc...
Why is the sky blue?
- During the day, the sky appears blue because of the way the Earth's atmosphere scatters sunlight.
- The shorter blue wavelengths of light are scattered in all directions by the gases and particles in the atmosphere.
- This is known as Rayleigh scattering, named after the British scientist Lord Rayleigh who first described it.
- Blue light is scattered more than other colors because it travels as shorter, smaller waves.
Why do we see red and orange colors at sunset?
- When the sun is lower in the sky, its light passes through a greater thickness of the Earth's atmosphere.
- The blue light is scattered away from the line of sight, leaving primarily red and orange hues.
- The longer wavelengths such as red and orange are able to penetrate the atmosphere better and reach our eyes.
- This is why we see stunning red and orange sunsets as the sun nears the horizon.
In summary
- The sky appears blue during the day due to the scattering of blue light by the atmosphere.
- At sunset, the blue light is scattered out, leaving behind the red and orange colors to create a beautiful sunset.
- During the day, the sky appears blue because of the way the Earth's atmosphere scatters sunlight.
- The shorter blue wavelengths of light are scattered in all directions by the gases and particles in the atmosphere.
- This is known as Rayleigh scattering, named after the British scientist Lord Rayleigh who first described it.
- Blue light is scattered more than other colors because it travels as shorter, smaller waves.
Why do we see red and orange colors at sunset?
- When the sun is lower in the sky, its light passes through a greater thickness of the Earth's atmosphere.
- The blue light is scattered away from the line of sight, leaving primarily red and orange hues.
- The longer wavelengths such as red and orange are able to penetrate the atmosphere better and reach our eyes.
- This is why we see stunning red and orange sunsets as the sun nears the horizon.
In summary
- The sky appears blue during the day due to the scattering of blue light by the atmosphere.
- At sunset, the blue light is scattered out, leaving behind the red and orange colors to create a beautiful sunset.
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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.
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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. for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about 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. covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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..
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. for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about 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. covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for 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..
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