answersLogoWhite

0

This is because the amount of refraction taking place at the parallel faces of a glass slab is equal but opposite and since the faces are parallel the emergent ray emerges parallel to the incident ray with lateral displacement.

User Avatar

Wiki User

11y ago

What else can I help you with?

Related Questions

The incident ray and the emergent ray will always be?

The Incident ray, falling on the glass slab, and the Emergent ray will always be parallel to each other.


Why is the emergent ray parallel to direction of the incident ray in a rectangular glass slab?

In a rectangular glass slab, the emergent ray is parallel to the incident ray because of the principle of refraction. When light enters a denser medium (like glass) from a rarer medium (like air), it bends towards the normal. As the light exits the glass slab and reenters air, it bends away from the normal. The combination of these two refractions results in the emergent ray being parallel to the incident ray.


What is a glass slab?

it is a substance made of glass having 3 dimensions and is cuboid shaped. It does not deviate the light. This means that the incident and the emergent ray are parallel. The slab only produces lateral (sideways) shift or displacement.


Why does a light ray incident on a rectangular glass slab immersed in any medium emerges parallel to itself?

When a light ray enters a rectangular glass slab at an angle, it bends towards the normal due to refraction. As it exits the glass slab, it bends away from the normal by the same amount due to refraction again. The angles at which the light ray enters and exits the slab are such that they cancel out the overall deviation, resulting in the emergent ray being parallel to the incident ray.


What is glass slab?

it is a substance made of glass having 3 dimensions and is cuboid shaped. It does not deviate the light. This means that the incident and the emergent ray are parallel. The slab only produces lateral (sideways) shift or displacement.


Is incident ray parallel to the emergent ray through two glass slab of different refractive index?

No, the incident ray and emergent ray will not be parallel if the glass slabs have different refractive indices. This is because the light rays will experience refraction at each interface as they pass through the slabs due to the change in refractive index, causing the emergent ray to be offset from the incident ray.


How can the lateral displacement of the emergent ray with respect to incident ray in glass slab be increased?

Lateral displacement increases if the: 1. Angle of incidence is increased. 2. Refractive index is increased 3. Thickness of the medium( i.e. here in your case the glass block) is increased.


What is the formula for finding the lateral displacement of an incident ray when it passes through a glass slab?

The lateral displacement (D) of an incident ray passing through a glass slab can be calculated using the formula D = t * sin(i - r), where t is the thickness of the glass slab, i is the angle of incidence, and r is the angle of refraction. This formula takes into account the deviation of the ray as it passes through the glass slab.


How should a ray of light be incident on a glass slab so that it comes out from the opposite side of slab without being displaced?

The ray of light should be incident perpendicular to the surface of the glass slab. This ensures that the light ray does not get deviated or displaced while passing through the glass slab, emerging on the other side in the same direction.


What happens if light is passed through a glass slab whose sides are not parallel?

it becomes kinda prism


What is the angle between incident ray of light and emergent ray of light when incident ray of light falls obliquely?

The angle between the incident ray and emergent ray is called the angle of - DeviationIt depends on the refractive index of the glass slab, the material the light is traveling through before hitting the slab as well as the angle it hits the slab at.Snell's law:The refractive index of the medium the light is traveling out of - times - sin for the angle between the ray of light and the normal of the surface = the refractive index of the medium the light is traveling into - times - sin for the angle between the ray of light and the normal of the surface on the other side.n1 * sin(angle1) = n2 * sin(angle2)Where:n1 = Refractive index of the material the light is exiting.sin(angle1) = Sin for the angle at which the light hits the surface of the glass slab. This angle is measured by drawing a line from the point on the glass slab that the light hits the surface perpendicular to the surface, that is to say at a 90 degree angle against the surface. You then measure the angle between this new line and the line of the ray of light.n2 = Refractive index of the material the light is enteringsin(angle2) = Sin for the angle at which the light leaves the edge of the glass slab.Illustration:http://www.math.ubc.ca/~cass/courses/m309-01a/chu/Fundamentals/snell01.gif


What happens when light is perpendicular to glass slab?

When light is perpendicular to a glass slab, it passes through unaffected without any deviation in its path. This phenomenon is known as normal incidence, where the incident light ray and the refracted ray are along the same line.