Question

please tell me about refration of sunlight ​

Answer 1

Explanation:

This effect is especially powerful for objects that appear close to the horizon, such as the rising or setting Sun, because the light rays enter the Earth's atmosphere at a particularly shallow angle. Because of refraction, the Sun may be seen for several minutes before it actually rises in the morning and after it sets in the evening.

One of the consequences of this effect of refraction is that contrary to what most people think, the day and night is not exactly 12 hours long on the days of the Equinoxes. Because of refraction of sunlight, daytime is just slightly longer than night time on March Equinox and September Equinox.

This effect also has an impact on the time that the Moon can be seen before Moonrise and after Moonset.

When the light of a celestial object enters the Earth's atmosphere from space, the resulting refraction is known as astronomical refraction or atmospheric refraction. This is in contrast to terrestrial refraction that occurs when the source of light is from an object on Earth. Displacing the Sun, the Moon, and the Stars.

Answer 2

Answer:

its refraction of light and it means when a ray or light enters from one medium into another obliquely it undergoes a change not only in direction, but in velocity as well. This change of direction and velocity of light as it enters from one medium into another is known as refraction of light.