Answers

2016-02-06T20:36:13+05:30
Sun consists of many hydrogen particles which burns to give light and heat energy. The light ray from the sun travels in the space which doesn't has any medium so the light ray doesn't deflects but when it enters the horizon of earth the light deflects as the medium becomes denser as it comes close to surface so the light appears to our eyes.
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2016-02-06T21:54:05+05:30
Because hydrogen particles present in it and light produced it also does not deflect.

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