1.

Why do star twinkle ?

Answer» The star is twinkling due to causes by atmospheric refraction that is in that time the distance between star and earth maximum so this refraction have more so the star is twinkling.
They do not twinkle in real but they appears to twinkle because of atmospheric refraction.?.
The star we see with naked eye doesn\'t twinkle in real. But due too refraction(change in path of light due to change in medium i.e. form vaccum to air) we feelthat star does twinkle


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