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What else can I help you with?
What is the definition of critical angle?
The definition of critical angle is the angle of incidence that refraction can still occur.
A block is at rest on an inclined plane. Find the critical angle at which the box beigns to slide?
tan-1(MUs)= critical angle
Why critical angle is depend on wavelength used?
The behaviour of electromagnetic waves of depends on their wavelengths. As a result the critical angle for refraction changes according to the wavelength.
Why is a small critical angle desirable for optical fibers What problems could be caused if the critical we're increased?
because a smaller critical angle means that it is easier for total internal reflection to occur, which is the desirable quality in an optical fibre.
If the number of sides of a regular polygon doubles what happens to the measure of each exterior angle?
They remain the same.
What happens when a wave strikes a boundary and bounces back?
When a wave strikes a boundary, it can undergo reflection, where it bounces back into the medium from which it originated. The angle of incidence, or the angle at which the wave hits the boundary, is equal to the angle of reflection. This behavior is governed by the law of reflection. Depending on the properties of the boundary, some energy may also be absorbed, transmitted, or refracted.
What the critical angle and is and what happens to light and the ceitical angle?
It spells "critical" correctly
What happens to a light wave traveling through a diamond that strikes a boundary with water at a 45 degree angle?
When a light wave traveling through a diamond strikes a boundary with water at a 45 degree angle, it will refract as it enters the water due to the change in medium density. Some of the light will also reflect off the boundary between the diamond and water, causing partial reflection and transmission of the light wave.
What happens to a light wave traveling through air when it strikes a boundary with water at a 45 and Acirc and deg angle?
When a light wave traveling through air strikes a boundary with water at a 45° angle, it will change speed and direction due to a change in the medium's refractive index. This phenomenon is called refraction. The angle of refraction depends on the refractive indices of air and water according to Snell's law.
When a ray emerging from glass strikes boundary at an angle greaater than the crictial angle it willBe?
totally internally diffracted.
How to find the critical angle in a given scenario?
To find the critical angle in a given scenario, you can use the formula: critical angle arcsin(1/n), where n is the refractive index of the material. The critical angle is the angle of incidence at which light is refracted along the boundary between two materials.
What best describes why the critical angle of an air-glass boundary is 39.3?
The critical angle depends on the index of refraction of the two substances, in this case, air and glass. The angle can be calculated by Snell's Law. It won't always be exactly 39.3°, since different glasses have different indices of refraction.
How is the critical angle related to the refractive index of a medium?
The refractive number of a substance is a measure of how much the speed of a wave changes compared to the speed in a reference medium i.e. air or a vacuum. The critical angle is the angle of incidence above which total internal reflection occurs. When the angle of incidence of the light ray leaving the glass is less than the critical angle, the light ray speeds up on leaving the glass and is refracted away from the normal.
What happens when light strikes a mirror?
When light strikes a mirror, it is reflected back at the same angle it hit the mirror, following the law of reflection. The angle of incidence (the angle at which the light beam strikes the mirror) is equal to the angle of reflection (the angle at which the light beam bounces off the mirror).
What happens when normal incidence strikes mirror?
When light with normal incidence strikes a mirror, it reflects back at the same angle in the opposite direction. This is known as specular reflection, where the angle of incidence is equal to the angle of reflection.
What is the significance of the critical angle in the context of fiber optics?
The critical angle in fiber optics is important because it determines whether light can be transmitted through the fiber or not. When light hits the boundary of the fiber at an angle greater than the critical angle, it is reflected back into the fiber, allowing for efficient transmission of signals.
Uses of total internal reflection?
Total Internal Reflection is an optical phenomenon which occurs when a ray of light strikes a medium boundary at an angle larger than a particular critical angle with respect to the normal to the surface. If the refractive index is lower on the other side of the boundary, no light can pass through and all of the light is reflected. The critical angle is the angle of incidence above which the total internal reflection occurs. Hope I helped!
