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प्रश्न
Why does the sun appear red at sunset?
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उत्तर
At sunset, the sun is near the horizon; hence, sunlight has to travel a longer distance through the atmosphere to reach us. During this journey, most of the blue colour present in sunlight, which has a shorter wavelength, gets scattered from our line of sight. Thus, the red colour present in sunlight, which has a longer wavelength and gets scattered the least, reaches our eye. As we see red colour everywhere overhead, the sun and the surrounding sky appear red at sunset.
संबंधित प्रश्न
With the help of scattering of light, explain the reason for the difference in colours of the Sun as it appears during sunset/sunrise and noon.
Which colour of the spectrum has
longest wavelength,
Which colour of light has the shorter wavelength − red or violet?
Name some everyday objects:
which absorb all the colours in sunlight
State whether the following statements are true or false:
The scattering away of blue light makes the sun appear red at sunset.
What is tyndall effect? Explain with an example.
When sunlight enters the earth’s atmosphere, state which colour of light is scattered
- the most and
- which the least.
What characteristic property of light is responsible for the blue colour of the sky?
Why does the sun appear red at sunrises and sunset?
How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
