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प्रश्न
A student claims that because of atmospheric refraction, the sun can be seen after it has set, and the day is, therefore, longer than if the earth had no atmosphere.
What does the student mean by saying that the sun can be seen after it has set?
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उत्तर
The refraction of sunlight by the earth's atmosphere causes the sun to be seen for about two minutes even after it has set below the horizon.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
