Question

The sun is visible to us about 2 minutes before the actual sunrise, and about 2 minutes after the actual sunset.
answer this question

Answer 1

u know why is it so :

It is because of atmospheric refraction. When the Sun is slightly below the horizon, the light coming from it travels from less dense to more dense air and is refracted downwards. Thus, the Sun appears to be raised and can be seen 2 min before the actual sunrise and 2 min after actual sunset.

please mark it as brainliest dear : )

Answer 2

Answer:

This is due to refraction of light

Explanation:

Before sunrise and after sunset the atmospheric layers are warmer than the layers near the earth's surface. When the sun is just below the horizon the light from the sun , while coming towards the earth suffers refraction from a rarer to a denser medium and so it bends towards the normal at each case. Due to continuous bending of light rays at successive layers , the sun can be seen even if it's actual position is below the horizon