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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.
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संबंधित प्रश्न
Which color of white light is scattered the least and why?
Out of blue light and red light, which one is scattered more easily?
Complete the following statement:
When the sun is setting, the light from it has to travel a ................ thickness of the earth's atmosphere and only ................ wavelength ................ light is able to reach us. Sunset is therefore ................
The clouds are seen white. Explain
What is meant by advance sunrise and delayed sunset? Draw a labelled diagram to explain these phenomena.
State the difference in colours of the sun observed during sunrise/sunset and noon. Give explanation for each.
The clear sky appears blue because
Why is the colour of the clear sky blue?
What is the difference in colours of the Sun observed during sunrise/sunset and noon? Give explanation for each.
How can we explain the reddish appearance of sun at sunrise or sunset? Why does it not appear red at noon?
