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That is called refraction.
Refraction
it changes the direction of light
Yes...supermassive blackholes are a good example.
Refraction
a mirage
That is called refraction.
Refraction
Refraction
Mirage
It's called refraction.
reFRACtion There isn't a good nmeonic or the like to remember the difference between refraction, reflection and diffraction. You just have to learn it.
Refraction of light allows for the change of appearance of an object
Distance objects can be seen to "ripple" on a hot day because of refraction. As light from a distance object makes the trip to the observer, it passes through air of slightly varying densities. This causes it to "change course" to a degree, which is refraction. It is this thermally induced refraction that is responsible for the "ripple" we see, and for the mirage we sometimes hear about.
The bending of a wave as it moves from one medium into another is called refraction.
it changes the direction of light
because of refraction , you see the object "bending"