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Question
What is the reason of the twinkling of stars?
What is the reason of the twinkling of stars?
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Solution
The correct option is B Refraction
Light from the stars has to come through a thick layer of atmosphere and the density of atmosphere keeps on increasing as light approaches the Earth. More dense layer of atmosphere have greater refractive index and hence will bend the light more. Since the physical condition of atmosphere keeps on changing the apparent position of star keeps on shifting. Star being a point object for us appears to be twinkling.
Light from the stars has to come through a thick layer of atmosphere and the density of atmosphere keeps on increasing as light approaches the Earth. More dense layer of atmosphere have greater refractive index and hence will bend the light more. Since the physical condition of atmosphere keeps on changing the apparent position of star keeps on shifting. Star being a point object for us appears to be twinkling.
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