What does this say about the relative speeds of light in the glass and in the oil?

What does this say about the relative speeds of light in the glass and in the oil? Or asked another way, how do the indices of refraction, n, compare for the glass and oil? The speeds of light in the glass rod and in the oil are the same.

Which of the following describes what will happen to a light ray incident on a glass to air boundary at an angle of incidence greater than the critical angle?

Which of the following describes what will happen to a light ray incident on an glass-to-air boundary at an angle of incidence greater than the critical angle? At a boundary between any two materials, there will be both reflection and transmission.

How does the speed of light in a medium compare to the speed of light in a vacuum?

How does the speed of light in a medium compare to the speed in a vacuum? The speed in the medium is always slower than the speed in a vacuum.

What is the relationship between refraction and the speed of light quizlet?

The index of refraction is inversely proportional to the speed of light in a material.

What may happen when light passes through a glass of water?

When light that is traveling through the air hits water, some of the light is reflected off the water. The rest of the light passes through the water but it bends (or refracts) as it enters the water. The same thing happens when light hits glass or any other transparent material.

The Speed of Light in Glass

Why does glass disappear in oil?

You see transparent objects because they bend light.

The oil in the tank is optically similar to glass, so light doesn't bend when it passes from one to the other. Without the telltale distortions of light caused by refraction, the glass rods disappear when lowered into the oil.

What is the relationship between refraction and the speed of light?

Explanation: The refractive index of a medium (n) is equal to the speed of light (c) divided by the velocity of light through the medium (v). Rearranging the equation allows us to see the relationship regarding v. The lower the refractive index, the faster the velocity of light.

What happens to the speed of light when it enters a glass prism quizlet?

Because light travels more slowly in glass than in air, we say glass is "optically more dense" than air. In general: - When light enters a more dense medium, it is refracted towards the normal. - When light enters a less dense medium, it is refracted away from the normal.

What statement could you make about the relationship between the frequency of light and refraction?

the relationship is that when rays are refracted differently they have different frequencies, and if the frequencies are the same they will be refracted the same.

How does the speed of light in glass compared to the speed of light in a vacuum quizlet?

How does the average speed of light in glass compare with its speed in a vacuum? The average speed of light in glass is about 67% of the speed of light in a vacuum.

How does the speed of light traveling through a medium such as air or glass compare to the speed of light in a vacuum quizlet?

A. How does the speed of light traveling through a medium (such as air or glass) compare to the speed of light in a vacuum? It is always less than the speed of light in a vacuum.

How does the speed of light in a medium compare to the speed of light in a vacuum quizlet?

Terms in this set (14)

How does the speed of light in a medium compare to the speed in a vacuum? The speed in the medium is always slower than the speed in a vacuum.

When light speeds up as it passes from one medium to another angle of incidence?

When light speeds up as it passes from one material to another, the angle of refraction is bigger than the angle of incidence. For example, this happens when light passes from water to air or from glass to water. The diagram above shows light incident on a water-air interface.

What happens to the light ray when it hits the boundary between water and glass?

Glass and water are thicker and heavier than air. They are said to be 'denser' than air. What happens is that light slows down when it passes from the less dense air into the denser glass or water. This slowing down of the ray of light also causes the ray of light to change direction.

What happens to the speed of a light ray that enters and passes through a block of glass from air?

the light slows down going into a denser substance, and the ray bends towards the normal.

When light strikes a prism what happens and why quizlet?

When white light strikes a prism, what happens and why? The white light emerges with the colors separated, with the red light bending the least.

What happens to the speed of light when it passes from a vacuum into glass?

Light slows down when it passes from A vacuum into glass; light speeds up when it passes from water into air.

What is the relationship between the velocity of light and the index of refraction of a transparent substance?

Refractive index is also equal to the velocity of light c of a given wavelength in empty space divided by its velocity v in a substance, or n = c/v.

What is the relationship between the refractive index of glass and the speed of light traveling from air to glass?

The refractive index is the relationship between the speed of light and the speed at which light travels. The refractive index of light in glass is about 1.5 which means that light is 1.5 slower in that medium.

Why does speed of light change in different mediums?

Light moves slower through denser media because more particles get in its way. Each time the light bumps into a particle of the medium, the light gets absorbed which causes the particle to vibrate a little and then the light gets re-emitted.

What happens to the speed of light as it moves into a substance with a higher index of refraction?

The light bends towards the normal line. If light travels enters into a substance with a lower refractive index (such as from water into air) it speeds up. The light bends away from the normal line. A higher refractive index shows that light will slow down and change direction more as it enters the substance.

Does oil and glass have same refractive index?

Wesson vegetable oil has nearly the same index of refraction (n) as Pyrex glass (n = 1.474). Different types of glass have different indices of refraction.

Why does the beaker disappear in oil?

In this "magical" science demo, the oil and the small glass beaker have the same index of refraction. That means that light doesn't change speed or direction when it passes from the oil to the beaker and back. Since the small beaker does not bend the light, we can't see it!