A) total internal reflection
B) high dense matter of star
C) constant burning of hydrogen in the star
D) the fluctuating apparent position of the star being slightly different from the actual position of the star
Correct Answer: D
Solution :
The atmosphere can be considered to consist of a number of parallel layers of air of different densities and therefore of different refractive indices. The density and the refractive index of layers decrease with altitude.You need to login to perform this action.
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