What is Atmospheric Refraction? What are the phenomena which are caused
by atmospheric refraction. Discuss any one Phenomenon among them
Answers
Answer:
Atmospheric Refraction Phenomena
Mirages and green flashes, the main topics of this website, are only some of the phenomena caused by refraction in the Earth's atmosphere. To put everything into perspective, here's a list of the main atmospheric refraction phenomena:
Number
of Images Phenomenon Atmosphere
acts like a GF type Observer is
1 “normal” refraction prism or wedge “textbook” anywhere
looming and sinking prism
towering and stooping weak lens
2 inferior mirage strong lens or
curved mirror inf.-mir. anywhere
superior mirage duct-edge below inversion
3 “late” mirage strong lens none below inversion
3-image mirage none below inversion
mock mirage mock-mir. above inversion
> 3 5-image mirages;
Fata Morganas series of lenses none or
duct-edge within or below
strong inversions
Links in the table lead to simulations; see the glossary for explanations of the various terms.
Note that a display does not count as a “mirage” unless there is at least one inverted image. (It's possible for the inverted image of a simple superior mirage to be the only one visible.)
Note, too, that the standard terminology of geometrical optics makes all erect images “virtual” images, and all inverted images “real.” Erect and inverted images always alternate, though some may be so strongly compressed as to be imperceptible, even with magnification.
In general, none of the erect images is exactly aligned with the geometric position of the object; and all images are astigmatic.
The rare and complex displays in the bottom row of the table are poorly understood.
Explanation:
pls make it brainlest answer
Answer:
Atmospheric refraction is the refraction of light caused by the earth's atmosphere due to change in the refractive indices of different layers of the atmosphere.
Examples of atmospheric refraction: ... Stars twinkle on account of atmospheric refraction. Starlight undergoes refraction many times before reaching the earth. It occurs because there is a gradual increase in the refractive index from the atmosphere to the earth's surface.
IN SIMPLER WORDS:
Atmospheric refraction is the deviation of light or another electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of height.
Hope this helps!