Staement -1. The apparent position of the star is slightly higher than its actual position. Statement-2 . Density of air increases with lowering height above the surface of the earth. Give reason for Statement 1 with the help of Statement 2.

Staement -1. The apparent position of the star is slightly higher than

1.	Staement -1. The apparent position of the star is slightly higher than its actual position. Statement-2 . Density of air increases with lowering height above the surface of the earth. Give reason for Statement 1 with the help of Statement 2.
Answer» Solution :1. As the density of air increase with lowering HEIGHT above the SURFACE of the earth, the refractive index also increases. 2. Star light coming towardsus travels from rarer medium to denser medium and constantly bends TOWARDS the NORMAL. This makes the star appear to be higher in the sky as compared to its actual position.