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When light enters in medium 2 from medium 1 the angle of incidence is always greater than the angle of refraction Could total internal reflection take place from medium 1 to medium 2?
Wiki User
∙ 11y ago
Definitely possible asmedium 2 is found rarer compared to medium 1
Wiki User
∙ 11y ago
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Why is the angle of incidence greater than the angle of refraction based on the magic pencil activity?
The angle of incidence is greater.
What happens to the light ray when the angle of incidence is greater than the angle of total reflection?
it is not the angle of total reflection, it is the critical angle. and when the angle of incidence is greater than the critical angle, total internal reflection takes place and as it is necessary for total internal reflection to take place that the ray must travel from denser to rarer medium so, when it occurs, the ray is reflected bach into the denser medium.
What happens when the angle of incidence is greater than the critical angle?
You get total internal reflection. That is, the incident beam bounces off the interface back into the medium.
True or false- the angle of incidence is always greater than the reflection angle?
False .According to laws of reflection, the angle of incidence is always equal to the angle of reflection.
Angle of refraction is less than 90 degree true or false?
False. You can have total internal reflection where the effective angle is greater than 90 deg
What is total internal refraction?
When the angle of incidence is greater than the critical angle,the light ray reflects into denser medium at interface. This is total internal refraction
What happens when the angle of refraction is 90 degrees or greater?
I think total internal reflection
What are the conditions for total internal reflection to take place?
Light must travel from the optically denser medium to the optically less dense one. For total internal reflection to occur, the angle of incidence in the optically denser medium must be greater than the critical angle of that medium. The critical angle is that angle of incidence in the optically denser medium for which the angle of refraction is 90o.
What happens if the refraction angle is greater than ninety degrees?
This means no refraction occurs i.e. Total internal reflection (all light reflected) occurs
What two mediums have to be present for total internal reflection?
Any two media having different optical densities is necessary. The conditions for total internal reflection are: 1. Light must travel from the optically denser medium to the optically less dense one. 2. The angle of incidence is greater than the critical angle, which is the angle of incidence in the optically denser medium for which the angle of refraction is 90o.
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 is the angle of incidence greater than the angle of refraction based on the magic pencil activity?
The angle of incidence is greater.
What happens to the light ray when the angle of incidence is greater than the angle of total reflection?
it is not the angle of total reflection, it is the critical angle. and when the angle of incidence is greater than the critical angle, total internal reflection takes place and as it is necessary for total internal reflection to take place that the ray must travel from denser to rarer medium so, when it occurs, the ray is reflected bach into the denser medium.
What happens when the angle of incidence is greater than the critical angle?
You get total internal reflection. That is, the incident beam bounces off the interface back into the medium.
True or false- the angle of incidence is always greater than the reflection angle?
False .According to laws of reflection, the angle of incidence is always equal to the angle of reflection.
Angle of refraction is less than 90 degree true or false?
False. You can have total internal reflection where the effective angle is greater than 90 deg
