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When light travels from air into a glass slab there is no change in its?
Wiki User
∙ 9y ago
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Wiki User
∙ 9y ago
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Why does light refract when it passes from air into a glass slab?
Because glass slab is optically denser than air.
Why does not a glass slab disperse light?
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.
Why does a light ray incident on a rectangular glass slab immersed in any medium emerges parallel to itself?
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.
How do you determine refractive index of a glass slab?
By using travelling microscope and formula n=h/h'
What will happen when ray of light passes through a glass slab?
speed of light will decreases
Why glass slab do not causes disperssion of light ray?
Glass does cause disperssion. Think of a prism.
Can a mirror be a opaque object?
Great question! A mirror can be called as opaque. Because as a whole, it does not allow light to pass through it..Defn of opaque objects: Impervious to the rays of light.A mirror is actually a thin glass slab with its one side coated with silver. So when the rays fall on the mirror, it first falls on the upper face of the glass slab, gets refracted, travels through it, gets reflected by silver, travels back through glass slab, gets refracted at the upper glass-air interface and comes out.So here light actually "passes through" one of the parts of mirror- the glass slab(the other one being the silver coating).But when you say mirror, you consider the object as a whole and not by parts... AND as a whole it does not allow light to pass through it. Therefore, you can very well call it opaque!!
When a thick glass slab is placed over some printed matter the letters appear raised when viewed through the glass slab. Why?
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.
Why does light refact when it passes from air into a glass slab?
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
How does lateral displacement change with the width of a glass slab?
, 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
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.
Why glass ionomer cement not mixed on glass slab?
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.
