GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Much more red light than blue light is absorbed by air atoms.
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Red light is reflected by the atmosphere.
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Red light is reflected by the atmosphere.
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Blue light is scattered to a greater extent than red light.
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Detailed explanation-1: -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.
Detailed explanation-2: -Violet and blue light have the shortest wavelengths and red light has the longest. Therefore, blue light is scattered more than red light and the sky appears blue during the day. When the Sun is low in the sky during sunrise and sunset, the light has to travel further through the Earth’s atmosphere.
Detailed explanation-3: -Explanation : When light passes through atmosphere, the blue light (Light having high frequency) get scattered in sky. So the sky appears to be blue.
Detailed explanation-4: -The sky appears blue to the human eye as the short waves of blue light are scattered more than the other colours in the spectrum, making the blue light more visible.
Detailed explanation-5: -This is true. Scattering of light causes the blue colour of sky and reddening of the Sun at the times of sunrise and sunset. 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.