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In which the index of refraction is higher for short wavelengths and lower for long wavelengths.
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Why is chromatic aberration more evident for some positions of the aperture?
The further the aperture is from the optical axis of the lens, the more to the side of the lens the incident light falls. The further the light falls from the optical axis, the greater the effects of chromatic aberration. This is because different wavelengths of light have different refractive indices (dispersion). Because of Snell's Law, n1sintheta1=n2sintheta2, the greater the angle of incidence, the more pronounced the effects of the difference in refractive indices. Spherical aberration further enhances the chromatic dispersion.
What is refractive indices?
Refractive index refers to the velocity of light's ratio in a vacuum to its velocity under a specified medium.
How much is the refractive angle when total internal reflection occurs?
That varies, depending on the refractive indices of the materials involved. The critical angle can be derived from Snell's law; it is equal to arcsin(n2/n1), where n2 and n1 are the refractive indices of the materials involved.
Why does dispersion not occur in hollow prism?
bcz there is no difference in refractive index during proagation
How does critical angle depend on color of light?
Critical angle of a medium depends on refractive index of the medium. Different colors of light have different wavelengths have different refractive indices.
What is anomalous interference?
Anomalous interference colors are produced by dispersion of refractive indices from slow to fast light rays.
What is the refractive indices of glass water air and immersion oil?
· The refractive indices of watero Water (0° C) 1.33346Water (100° C) 1.31766Water (20° C) 1.33283· The refractive indices of immersion oil is 1.518· The refractive indices of air is 1.000277· The refractive indices of glass is 1.518
Why is chromatic aberration more evident for some positions of the aperture?
The further the aperture is from the optical axis of the lens, the more to the side of the lens the incident light falls. The further the light falls from the optical axis, the greater the effects of chromatic aberration. This is because different wavelengths of light have different refractive indices (dispersion). Because of Snell's Law, n1sintheta1=n2sintheta2, the greater the angle of incidence, the more pronounced the effects of the difference in refractive indices. Spherical aberration further enhances the chromatic dispersion.
When the incident angle equals the transmitted angle?
Either when they are both 0 degrees (the incident ray is perpendicular to the surface) or the refractive indices of the two media are the same.Either when they are both 0 degrees (the incident ray is perpendicular to the surface) or the refractive indices of the two media are the same.Either when they are both 0 degrees (the incident ray is perpendicular to the surface) or the refractive indices of the two media are the same.Either when they are both 0 degrees (the incident ray is perpendicular to the surface) or the refractive indices of the two media are the same.
What is refractive indices?
Refractive index refers to the velocity of light's ratio in a vacuum to its velocity under a specified medium.
How much is the refractive angle when total internal reflection occurs?
That varies, depending on the refractive indices of the materials involved. The critical angle can be derived from Snell's law; it is equal to arcsin(n2/n1), where n2 and n1 are the refractive indices of the materials involved.
When light enters a prism it splits into eight colors?
These are dispersion prisms which break up light into its constituent colors. However to answer you question, it really depends on a number of factors: the spectrum of light entering the prism, the light's angle of incidence, and the ratio between refractive indices of the media.
Why does dispersion not occur in hollow prism?
bcz there is no difference in refractive index during proagation
How does critical angle depend on color of light?
Critical angle of a medium depends on refractive index of the medium. Different colors of light have different wavelengths have different refractive indices.
A lens of glass is immersed in water. What will happen to its power?
The power of a lens depends on the differences in the refractive indices of the environment and the lens material. A glass lens immersed in water will loose power (a positive lens will focus at a greater distance). (This is for normal glass with refractive index greater than water - there could be glasses with refractive index less than water in which case the lens would gain power)
What is angular value of normal in refractive index?
The "normal" to a surface or a boundary is the direction perpendicular to it. Within the scope of this discussion, it has nothing to do with refractive index.
Why is white light dispersed by a glass prism?
When white light(composite light) consisting of various colors is passed through a prism, light of different colors will be deviated through different angles. Since the deviation is related to refractive index and refractive index to the color of light the deviation produced for different colors are different for same prism.That is the refractive indices are different for the various colors and this difference in the refractive indices is responsible for dispersion.
