A student claimed that, because of atmospheric refraction , the sun can be seen after it has set andthat the day is therefore longer than it would be if the earth had no atmosphere.First, what does she mean by saying that the sun can be seenafter it has set? Second, comment on the validity of her conclusion.
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A student claimed that, because of atmospheric refraction , the sun can be seen after it has set and
that the day is therefore longer than it would be if the earth had no atmosphere.
First, what does she mean by saying that the sun can be seen
after it has set? Second, comment on the validity of her conclusion.
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