# What happens to the frequency and the speed of an electromagnetic wave as it passed from air into glass?

## What happens to the frequency and the speed of an electromagnetic wave as it passed from air into glass?

When waves travel from one medium to another the frequency never changes. As waves travel into the denser medium, they slow down and wavelength decreases. Part of the wave travels faster for longer causing the wave to turn. The wave is slower but the wavelength is shorter meaning frequency remains the same.

## What happens to the speed and frequency of a light ray when it passes from air into water?

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. It is the change in the speed of the light that causes refraction.

What happens to the speed of electromagnetic waves when they pass into a different material?

Wave speed, frequency and wavelength in refraction The diagram shows that, as the wave travels into a denser medium, eg water, it slows down and the wavelength decreases. Although the wave slows down, its frequency remains the same, due to the fact that its wavelength is shorter.

### What happens to the speed wavelength and frequency of light when it passes from water to flint glass?

40. What occurs when light passes from water into flint glass? a) Its speed decreases, its wavelength becomes smaller, and its frequency remains the same. The diagram shows a ray of light being refracted as it passes from air into glass.

### What happens to the frequency of the electromagnetic waves as it progresses?

The EM spectrum is the ENTIRE range of EM waves in order of increasing frequency and decreasing wavelength. As you go from left → right, the wavelengths get smaller and the frequencies get higher. This is an inverse relationship between wave size and frequency. (As one goes up, the other goes down.)

What happens when the frequency of an electromagnetic wave increases?

Because the velocity is constant, any increase in frequency results in a subsequent decrease in wavelength. Therefore, wavelength and frequency are inversely proportional. All forms of EM radiation are grouped according to their wavelengths into an electromagnetic spectrum, seen in Figure 1-3.

## Does frequency affect wave speed?

The data convincingly show that wave frequency does not affect wave speed. An increase in wave frequency caused a decrease in wavelength while the wave speed remained constant. Rather, the speed of the wave is dependent upon the properties of the medium such as the tension of the rope.

## What is the relationship between speed of light frequency and wavelength?

They are all related by one important equation: Any electromagnetic wave’s frequency multiplied by its wavelength equals the speed of light.

What are the changes in speed frequency and wavelength of light as it travels from a material of low refractive index to a material of high refractive index?

If the refractive index of the medium the light enters is high, the light slows down, the wavelength decreases and the light bends toward the normal line. If the refractive index of the medium the light enters is low, the light speeds up, the wavelength increases and the light bends away from the normal line.

### What happens to the frequency of the electromagnetic waves as it progresses does the frequency of EM waves increase or decrease as we go from radio wave to gamma ray?

As a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer. There are two basic types of waves: mechanical and electromagnetic.