Table of Contents

- 1 What happens when the wavelength of a wave decreases?
- 2 How does wavelength affect electromagnetic waves?
- 3 When wavelength decreases what happens to the energy?
- 4 What happens to the wavelength and frequency of the electromagnetic waves as it progresses from left to right?
- 5 Does the wavelength of the electromagnetic waves increase or decrease as we go from radio wave to gamma ray?
- 6 What happens to energy when wavelength decreases?
- 7 What happens to the wavelength when the frequency increases?
- 8 Which is a wavelength in the electromagnetic spectrum?

## What happens when the wavelength of a wave decreases?

So if a wave slows down, its wavelength will decrease. Although the wave slows down, its frequency remains the same, due to the fact that its wavelength is shorter. 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.

## How does wavelength affect electromagnetic waves?

Electromagnetic waves vary in wavelength and frequency. Longer wavelength electromagnetic waves have lower frequencies, and shorter wavelength waves have higher frequencies. Higher frequency waves have more energy. The speed of a wave is a product of its wavelength and frequency.

**Do electromagnetic waves decrease?**

The wavefront of electromagnetic waves emitted from a point source (such as a light bulb) is a sphere. In order of increasing frequency and decreasing wavelength these are: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.

**What happens to the frequency of an electromagnetic wave when the energy of the wave decreases?**

Therefore, we can think of this as light since it is a type of electromagnetic wave. Looking at the equation for energy per photon of light, , we realize that energy per photon is proportional to frequency. As a result, if frequency decreases, then energy decreases as well, making C the correct answer.

### When wavelength decreases what happens to the energy?

Energy of radiation is inversely proportional to its wavelength. That is, when the wavelength increases, energy decreases and when the wavelength decreases, energy increases.

### What happens to the wavelength and frequency of the electromagnetic waves as it progresses from left to right?

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.

**What happens to the wavelength of an electromagnetic wave as the frequency increases?**

The number of complete wavelengths in a given unit of time is called frequency (f). 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.

**What is the relationship between wavelength and frequency?**

Frequency and wavelength are inversely proportional to each other. The wave with the greatest frequency has the shortest wavelength. Twice the frequency means one-half the wavelength. For this reason, the wavelength ratio is the inverse of the frequency ratio.

#### Does the wavelength of the electromagnetic waves increase or decrease as we go from radio wave to gamma ray?

The sequence from longest wavelength (radio waves) to shortest wavelength (gamma rays) is also a sequence in energy from lowest energy to highest energy. Remember that waves transport energy from place to place.

#### What happens to energy when wavelength decreases?

**Why does energy increase as the wavelength decrease?**

From this equation, it is clear that the energy of a photon is directly proportional to its frequency and inversely proportional to its wavelength. Thus as frequency increases (with a corresponding decrease in wavelength), the photon energy increases and visa versa.

**Does the wavelength of the EM waves increase or decrease as we go from radio wave to gamma ray?**

## What happens to the wavelength when the frequency increases?

The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength. READ: Can you catch food poisoning from another person?

## Which is a wavelength in the electromagnetic spectrum?

This diagram shows that the electromagnetic spectrum includes waves with all possible wavelengths of radiation. Wavelengths range from low energy radio waves through visible light to high energy gamma rays. Waves with longer wavelengths have a lower frequency and carry less energy.

**Which is true about the frequency of waves?**

Waves with longer wavelengths have a lower frequency and carry less energy. Waves with shorter wavelengths have a higher frequency and carry more energy.

**How is light transported in the electromagnetic spectrum?**

Energy ( electromagnetic energy) is the radiant energy ( light) transported by electromagnetic waves. Light can be used to mean the whole of the electromagnetic spectrum from radio waves, through visible light to gamma rays. A better term is radiant energy or photon energy.