(a) glass slab: It deviates from the actual path but the direction of incident ray and the emergent ray remain parallel. (b) glass prism: The splitting of white light into its constituents seven colors occurs and the direction of incident rays and emergent rays are not parallel to each other. (ii)
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.
GIC has silicate 'GLASS' in it's powder and so while mixing on glass slab the polyacrylic acid attack the glass content of glass slab. This may even alter properties of GIC.
The refractive index of prism is very high but its very low in glass slab, in glass slab the dispersion occurs but its very less, so is not visible.
Because the faces of the glass slab are parallel,whereas the faces of the prism are not.
Because glass slab is optically denser than air.
refractive index of glass is higher than refractive index of glass slab OR density of air is less than density of glass
The glass slab is rectangular and both sides of the glass slab have the same medium. The light refracts in such a way that incident and emergent rays are parallel.
Depending on the type of glass your glass slab is made of, it will have a different refractive index. Common microscope slides are made of soda-lime glass, which have a refractive index of 1.46.
the medium which have the same refractive index as glass.
, this is ojashwin mishra---- lateral displacement increases with the increase in thickness of the medium. it doesnt have any relation with the width of the glass slab
Glass does cause disperssion. Think of a prism.
When we keep the glass slab over some printed matter, the light coming from the letters (after reflection ) face change of medium at glass-air interface. Since glass has more refractive index than air, the light bends away from the normal as it goes out of glass. This apparently causes us to see the letters raised. Hope this clarified your doubt.
speed of light will decreases
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.
White light is actually a combination of all of the colors of all of the rainbow. It splits in a prism because the prism can pick up the differences. However, it will not in a glass slab because the slab is smooth and will not reflect all of the different colors of light.
When light passes into the slab it is changing medium from less to more dense. When that happens the light slows down and bends towards from the normal
The question is phrased very poorly, as the photon is by definition displaced after traveling through the slab. If you meant "deflected", however, it must be normal.
By using travelling microscope and formula n=h/h'
it becomes kinda prism
its wave length decreases
Different wavelengths take slightly different paths through the glass but the dispersion on entry and exit cancels out.
Infinity, as rays after refraction neither actually nor appears to meet.
Bending of light when it travels from a rarer to a denser medium it bends towards the normal
The light strikes on one surface of the prism undergoes refraction and passes through the glass of the prism, and when emerges out, it refracts again. This causes the dispersion of the light and splits the light into its constituent colours. The degree of bending depends on the angle at which the ray of light enters and leaves the faces of the prism. The faces of the prism are not parallel to each other. For a glass slab, the opposite faces of the slab are parallel. So only a slight deviation occurs.