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Will dispersion occur if a polychromatic ray of light enters a prism at an angle of incidence of 90 degree from air to denser medium?
Dispersion will occur, in the sense that the phase velocity of the different wavelengths will be different.
What you may be asking is whether refraction (a change in the direction of the light) will occur. Refraction will only be visible if the light impacts at an oblique angle, not 90 degrees.
What else can I help you with?
How do light refract?
when light travels from rarer medium(which has relatively lower density) to a denser medium(which is of relatively higher density) the angle of incident light and refracted light is less than 180 degree(when the angle is considered at the point of incidence) and when the light travels from a denser to a rarer medium the angle will be greater than 180 degree.
On what factors does deviation produced by a prism depend?
angle between two edges and angle of incidence how denser the object is
What happens if a ray's angle of incidence exceeds the critical angle?
If a ray's angle of incidence exceeds the critical angle when travelling from a denser medium to a less dense medium, total internal reflection occurs. This means that the light is entirely reflected back into the denser medium, rather than being refracted.
Is the angle of incidence is greater than the angle of refraction when light passes from a less dense to denser medium?
If you meant optical density by the term 'denser ' Then the answer is.... The light bends towards normal when it travels from a optically less dense medium to optically dense medium. So angle of incidence is greater than the angle of refraction
What will happen to the angle of refraction if the angle of incidence is made smaller for light passing from rarer to denser medium and how?
If the angle of incidence is made smaller for light passing from a rarer to a denser medium, the angle of refraction will also decrease. This is because of the law of refraction, which states that light bends towards the normal when moving from a rarer medium to a denser medium. Therefore, as the angle of incidence decreases, the angle of refraction will also decrease.
What are the conditions for total internal reflection to take place?
Light must travel from the optically denser medium to the optically less dense one. For total internal reflection to occur, the angle of incidence in the optically denser medium must be greater than the critical angle of that medium. The critical angle is that angle of incidence in the optically denser medium for which the angle of refraction is 90o.
Is the angle of incidence greater than the angle of refraction?
In general, the angle of incidence is greater than the angle of refraction when light passes from a denser medium to a less dense medium, such as from water to air. This is described by Snell's Law, which states that the ratio of the sines of the angles is proportional to the ratio of the velocities of light in the two media. However, when light travels from a less dense medium to a denser one, the angle of incidence can be less than or equal to the angle of refraction.
What happens to waves when they enter a denser medium at a angle?
When waves enter a denser medium at an angle, they undergo refraction. This means the wave changes direction depending on the change in speed caused by the change in medium density. The angle of refraction depends on the angle of incidence and the refractive indices of the two media.
What two mediums have to be present for total internal reflection?
Any two media having different optical densities is necessary. The conditions for total internal reflection are: 1. Light must travel from the optically denser medium to the optically less dense one. 2. The angle of incidence is greater than the critical angle, which is the angle of incidence in the optically denser medium for which the angle of refraction is 90o.
What happens to the light ray when the angle of incidence is greater than the angle of total reflection?
it is not the angle of total reflection, it is the critical angle. and when the angle of incidence is greater than the critical angle, total internal reflection takes place and as it is necessary for total internal reflection to take place that the ray must travel from denser to rarer medium so, when it occurs, the ray is reflected bach into the denser medium.
Does the speed of light changes when it goes from rarer medium to denser medium having angle of incidence equal to 0?
The speed of light changes when it goes from one medium to another one with a different index of refraction. The angle of incidence doesn't influence the change in speed.
It occurs when light hitting the boundary between two media comes from a denser medium?
Total internal reflection occurs when light is traveling from a denser medium to a less dense medium and the angle of incidence is greater than the critical angle. This causes the light to be reflected back into the denser medium rather than refracting out. It is commonly seen in situations like fiber optics.
