Question

How does twinkling of stars occur?? ALL THE BEST FOR YOUR EXAMS!!

Answer 1

There are many reasons for that

1) Changing temperatrue between air
2 ) Changing density of air
3) refractive index keeps on changing

As a result, stars twinke..

Hope it helps you,

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Answer 2

The continuously changing atmosphere refracts the light from the stars , from one moment to next, the continuously changing atmosphere able to cause variation in the light coming from the point sized star, this is due to atmospheric refraction