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Question
As light from a far off star comes down towards the earth:
(a) it bends away from the normal
(b) it bends towards the normal
(c) it does not bend at all
(d) it is reflected back
Solution
it bends towards the normal
As the light from a far-off star comes towards the earth, it bends towards the normal because the air is denser closer to the surface of the earth.
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