# What are the crests and troughs of an electromagnetic wave?

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Date created: Wed, Jun 9, 2021 1:19 AM
Date updated: Sat, May 28, 2022 7:26 PM

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Video answer: Parts of a wave: crest trough lambda

## Top best answers to the question «What are the crests and troughs of an electromagnetic wave»

• WAVELENGTH Electromagnetic waves have crests and troughs similar to those of ocean waves. The distance between crests is the wavelength. The shortest wavelengths are just fractions of the size of an atom, while the longest wavelengths scientists currently study can be larger than the diameter of our planet!

FAQ

Those who are looking for an answer to the question «What are the crests and troughs of an electromagnetic wave?» often ask the following questions:

### 👋 Which wave has crests and troughs?

• While a transverse wave has an alternating pattern of crests and troughs, a longitudinal wave has an alternating pattern of compressions and rarefactions. As discussed above, the wavelength of a wave is the length of one complete cycle of a wave. For a transverse wave, the wavelength is determined by measuring from crest to crest.

### 👋 What are troughs and crests in a wave?

• Waves have moving crests (or peaks) and troughs. A crest is the highest point the medium rises to and a trough is the lowest point the medium sinks to. Crests and troughs on a transverse wave are shown in the figure below.

### 👋 What kind of wave has crests and troughs?

• A standing wave is a wave that has crests and troughs at fixed points; the amplitude changes in time, but the locations of crests do not. The figure below shows a standing wave at three different times.

Video answer: Waves: amplitude, period, frequency, wavelength, crests .

We've handpicked 29 related questions for you, similar to «What are the crests and troughs of an electromagnetic wave?» so you can surely find the answer!

Which waves have crests and troughs?

8.3 Crests and troughs (ESACM)

Waves have moving crests (or peaks) and troughs. A crest is the highest point the medium rises to and a trough is the lowest point the medium sinks to. Crests and troughs on a transverse wave are shown in Figure 8.2. Figure 8.2: Crests and troughs in a transverse wave.

What are crests and troughs in sound waves?
• A rarefaction is the part of the wave (or Slinky) that is the most spread apart -- this is like the trough of the wave. You can see how these compressions and rarefactions can be considered as crests and troughs if we plot a graph of particle density against position for a (longitudinal) sound wave shown.
How many crests and troughs does a single wave have?

#### What are troughs and crests in a wave?

• Waves have moving crests (or peaks) and troughs. A crest is the highest point the medium rises to and a trough is the lowest point the medium sinks to. Crests and troughs on a transverse wave are shown in the figure below.
Do mechanical waves have crests and troughs?

each other the particles of a substance are, the faster a mechanical wave will travel through that substance. other words, a crest is the highest point of a wave (one wavelength). other words, a trough is the lowest point of a wave (one wavelength).

What is the crests and troughs of a standing wave are called?

antinodes

### Video answer: Label & draw transersve waves: amplitude, frequency

What are crests and troughs of transverse waves like?
• The crests and troughs of transverse waves are like peaks of a mountain. Particles move in a direction perpendicular to the direction of propagation of a wave. Share this with your friends
What is the distance between crests of an electromagnetic wave?
• The distance between crests is the wavelength. The shortest wavelengths are just fractions of the size of an atom, while the longest wavelengths scientists currently study can be larger than the diameter of our planet! An electromagnetic wave can also be described in terms of its energy—in units of measure called electron volts (eV).

### Video answer: Anatomy of a wave

What are troughs in a wave?

The highest surface part of a wave is called the crest, and the lowest part is the trough. The vertical distance between the crest and the trough is the wave height.

What happens when a wave crests?

A crest point on a wave is the minimum value of upward displacement within a cycle. A crest is a point on a surface wave where the displacement of the medium is at a maximum… When in antiphase – 180° out of phase – the result is destructive interference: the resulting wave is the undisturbed line having zero amplitude.

What a electromagnetic wave?

Definition: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields… They are deflected neither by the electric field, nor by the magnetic field.

### Video answer: Types of waves and wave properties

What waves have crests?

While a transverse wave has an alternating pattern of crests and troughs, a longitudinal wave has an alternating pattern of compressions and rarefactions. As discussed above, the wavelength of a wave is the length of one complete cycle of a wave.

What are the peaks and troughs of a sound wave?
• Sound waves are typically drawn as transverse waves, with the peaks and troughs representing the areas of compression and decompression of the air. Sound waves can also move through liquids and solids, but this article focuses on sound waves in air. Diagram illustrating longitudinal and transverse waves.
What distance separates successive crests of a periodic wave?
• A distance of 1.0 × 10^−2 meter separates successive crests of a periodic wave produced in a shallow tank of water. If a crest passes a point in the tank every 4.0 × 10^−1 second, what is the speed of this wave?
What is making the wave crests get further apart?

(What is making the wave crests get further apart?) Because the wavelength is changing, the colors in the starlight are changing too… If a star is moving away from the Earth it stretches the waves longer than they used to be. So we call it red shift.

What is the distance between adjacent wave crests called?

The highest surface part of a wave is called the crest, and the lowest part is the trough. The vertical distance between the crest and the trough is the wave height. The horizontal distance between two adjacent crests or troughs is known as the wavelength.

What is the distance between crests of a wave?

The highest surface part of a wave is called crest, and the lowest part is the trough. The horizontal distance between two adjascent crests or troughs is known as the wavelength (λ).

What is the horizontal distance between wave crests called?

The highest surface part of a wave is called the crest, and the lowest part is the trough. The vertical distance between the crest and the trough is the wave height. The horizontal distance between two adjacent crests or troughs is known as the wavelength.

What type of wave contains high points called crests?
• Traveling waves have high points called crests and low points called troughs (in the transverse case) or compressed points called compressions and stretched points called rarefactions (in the longitudinal case) that travel through the medium.

### Video answer: Write a short note on electromagnetic spectrum. #spectroscopy

What causes electromagnetic wave polarization?
• According to quantum mechanics, electromagnetic waves can also be viewed as streams of particles called photons. When viewed in this way, the polarization of an electromagnetic wave is determined by a quantum mechanical property of photons called their spin.
What constitutes an electromagnetic wave?

#### How does an electromagnetic wave begin? how does it travel?

• An electromagnetic wave begins when an electrically charged particle vibrates. This causes a vibrating electric field, which in turn creates a vibrating magnetic field. The two vibrating fields together form an electromagnetic wave. Beside above, can electromagnetic waves travel through matter?
What creates an electromagnetic wave?

#### What causes electromagnetic waves?

• Electromagnetic waves are caused by electronic devices nearby. Tiny electrical currents exist in the human body which can react with the electromagnetic waves. For example, nerves transmit electric impulses to the brain which can later be affected by the electromagnetic wave and have a positive charge.
What describes an electromagnetic wave?

An electromagnetic wave is a stream of photons which behaves both like waves and particles. They move perpendicular to the direction of propagation. They have 2 mutually perpendicular components of electric and magnetic fields.

What does electromagnetic wave mean?

An electromagnetic wave, in its simplest description, is a wave that as it propagates keeps converting its magnetic field into an electric field while converting its electric field into a magnetic field.

What electromagnetic wave is blue?

Visible light is that part of the electromagnetic spectrum that is seen as colours: violet, indigo, blue, green, yellow, orange and red. Blue light has a very short wavelength, and so produces a higher amount of energy.

What electromagnetic wave is harmful?

There are two main categories of EMFs: Higher-frequency EMFs, which include x-rays and gamma rays. These EMFs are in the ionizing radiation part of the electromagnetic spectrum and can damage DNA or cells directly.