Question

due to atmospheric refraction apparent length of day increases or decreases



pls help me soon​

Answer 1

Answer:

increases

Due to atmospheric refraction, the sun remains visible even after it sets and is visible even before it rises. Thus, the refraction increases the length of the day. From the calculations it has proved that sun rises 2 minutes earlier and sets 2 minutes later due to refraction

Explanation:

hope it helps you Mark me as the brainliest

Answer 2

Answer: Due to atmospheric refraction apparent length of day increases.

Explanation:

• When a ray of light passes through the atmosphere having layers of different densities and refractive indices, then refraction of light takes place (atmospheric refraction). The actual sunrise takes place when the sun is just above the horizon.
• When the sun is just below the horizon, the light rays coming from it, on entering the earth's atmosphere suffer atmospheric refraction from a rarer medium to a denser medium.  So they towards the normal at each refraction.
• Due to continuous refraction of light at each layer of atmosphere, it follows a curved path and reaches the eye of the observer as shown. As a result, we see the sun two minutes before it rises above the horizon in the morning.  

• It is also due to atmospheric refraction that we can see the sun for about two minutes even after the sun has set below the horizon. As a result, the time from sunrise to sunset is increased by about 4 (= 2 + 2) minutes because of atmospheric refraction

Hence, Due to atmospheric refraction apparent length of day increases