Question

) What is atmospheric refraction?

ii) With the help of diagram explain why the stars appear higher than they actually are?​

Answer 1

Answer:

i)Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of height. ... Astronomical or celestial refraction causes astronomical objects to appear higher above the horizon than they actually are.

ii)Due to continuous refraction of star's light, the star appears to be at a higher position and our eye will see the star at that position from where light enters it in the straight line direction.

Answer 2

Answer:

The stars seem to be higher in the sky than they actually are due to atmospheric refraction. As the light rays from a star pass through the different layers of atmosphere (density of layers increasing downwards), they suffer atmospheric refraction from a rarer to a denser medium.

Due to atmospheric refraction, the stars seem to be higher in the sky than the actual. Due to continuous refraction Light from a star is refracted as it leaves space and enters the earth's atmosphere. Air higher up in the sky is rarer but that nearer the earth's surface is denser. When the light from a star comes down, the dense air bends the light more.

Due to continuous refraction of star's light, the star appears to be at a higher position and our eye will see the star at that position from where light enters it in the straight line direction.