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  1. Stars appear twinkling because of ......... of light.
    1. Reflection
    2. Scattering
    3. Emission
    4. Absorption
Correct Option: B

The stars’ light must travel through the Earth’s multi-layered atmosphere, and as it does so it is refracted (bent) multiple times and in random directions. The phenomenon of random refraction appears to make the star wink as though it is in motion. It is this action that our eyes translate as twinkling. When the light itself enters the air – or atmosphere – it is scattered, with the scattering depending on the air temperature with warm air causing less bends and colder air causing more.



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