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When a wave is bent at an angle as it passes through a new medium it is called what?
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What is the bending of a wave called when it passes at an angle from one medium to another?
Refraction
When a light ray passes from one mediumto another at an angle?
when a light ray passes from one medium to another at an angle
The bending of a wave as it passes an angle from one medium to another?
refraction
Which is the definition of refraction?
The bending of a light wave as it passes at an angle from one medium to another
Why the ray of light does not bend when it passes perpendicularly from rarer medium to denser medium?
Since the angle of incidence is 0, there is no chance of refraction and so the angle of refraction too becomes 0.
What is the bending of a wave called when it passes at an angle from one medium to another?
Refraction
What occurs when light passes from one medium to a less optically dense medium at an angle so great that there is no refracted ray?
It is always refracted, but at an angle so that it goes back into the original medium. This phenomenon is called Total Internal Reflection. The angle that this occurs at is called the critical angle.
When a light ray passes from one mediumto another at an angle?
when a light ray passes from one medium to another at an angle
The bending of a wave as it passes an angle from one medium to another?
refraction
When a ray passes through two parallel slabs what will be the angle of deviation?
It depends on (a) the angle of incidence, and (b) the relative refractive indices of the slabs as well as the medium on either side of them and between them.
What is the term used when the bending of a wave as it passes at an angle from one medium to another?
Refraction.
Which is the definition of refraction?
The bending of a light wave as it passes at an angle from one medium to another
Why light passes undeviated falling straight on a refracting medium?
If by "straight on" you mean at 90 degrees to the surface of the medium, that is because light is only deviated if it makes an angle with the normal, which is an imaginary line perpendicular to the surface of the medium. If no angle is made between the normal line and the light ray, then no refraction occurs and the light passes through in a straight line. For more information see the related link below.
What is internal reflection?
Total internal reflection can happen only when a beam of light travelling through a dense medium crosses the interface with a rarer medium. For example, through a glass piece to air. When such a beam reaches an interface it makes an angle (called the angle of incidence) with the perpendicular at that point. When the beam exits the interface into the rarer medium. it makes a larger angle(called the angle of refraction) with the same perpendicular. As the angle of incidence increases, so does the angle of refraction. There is one value of the angle of incidence for which the angle of refraction is 90 degrees and the emerging ray is tangential to the interface. This is called the critical angle. For all angles of incidence greater than the critical angle the incident ray will not emerge into the rarer medium at all. In stead it gets reflected back into the denser medium itself. This phenomenon is called total internal reflection. Rainbows are a result of this phenomenon.
What is total internal reflection?
Total internal reflection can happen only when a beam of light travelling through a dense medium crosses the interface with a rarer medium. For example, through a glass piece to air. When such a beam reaches an interface it makes an angle (called the angle of incidence) with the perpendicular at that point. When the beam exits the interface into the rarer medium. it makes a larger angle(called the angle of refraction) with the same perpendicular. As the angle of incidence increases, so does the angle of refraction. There is one value of the angle of incidence for which the angle of refraction is 90 degrees and the emerging ray is tangential to the interface. This is called the critical angle. For all angles of incidence greater than the critical angle the incident ray will not emerge into the rarer medium at all. In stead it gets reflected back into the denser medium itself. This phenomenon is called total internal reflection. Rainbows are a result of this phenomenon.
Why the ray of light does not bend when it passes perpendicularly from rarer medium to denser medium?
Since the angle of incidence is 0, there is no chance of refraction and so the angle of refraction too becomes 0.
What happens when light passes through the prism in wrong angle?
There is no 'wrong angle' - it either passes through the prism or it doesn't. The blue or violet waves will be the most diffracted.
