Table of Contents
What is the Y axis of electromagnetic waves?
(Right) Light waves, also called electromagnetic waves, involve oscillations of electric and magnetic fields rather than oscillations of matter. The wavelength is its color. On this graph, the x-axis is distance; the y-axis is the strength of the electric field; and the z-azis is the strength of the magnetic field.
What is the axis of the wave?
Graphing a Wave The vertical axis is the amplitude of the wave while the horizontal axis can be either distance or time. In this picture you can see that the highest point on the graph of the wave is called the crest and the lowest point is called the trough.
What are the 7 parts of an EM wave?
The EM spectrum is generally divided into seven regions, in order of decreasing wavelength and increasing energy and frequency. The common designations are: radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma rays.
How do you determine the direction of an electromagnetic wave?
directions of propagation. To find the direction of propagation of an E&M wave, point the fingers of the right hand in the direction of the electric field, curl them toward the direction of the magnetic field, and your thumb will point in the direction of propagation.
Is light transverse?
Ernest Z. Light is a transverse wave because its components vibrate perpendicular to the direction of propagation.
What is a trough in a wave?
The highest surface part of a wave is called the crest, and the lowest part is the trough. The horizontal distance between two adjacent crests or troughs is known as the wavelength.
What are the parts of the wave?
Wave Crest: The highest part of a wave. Wave Trough: The lowest part of a wave. Wave Height: The vertical distance between the wave trough and the wave crest. Wave Length: The distance between two consecutive wave crests or between two consecutive wave troughs.
What waves can penetrate the atmosphere?
All visible light penetrates the atmosphere, most radio light penetrates the atmosphere, and some IR light passes through the atmosphere.
What is the direction of E x b in electromagnetic waves?
E is the electric field vector, and B is the magnetic field vector of the EM wave. For electromagnetic waves E and B are always perpendicular to each other and perpendicular to the direction of propagation. The direction of propagation is the direction of E x B.
How are electromagnetic waves shown by a sinusoidal graph?
Electromagnetic waves are shown by a sinusoidal graph. It consists of time-varying electric and magnetic fields which are perpendicular to each other and are also perpendicular to the direction of propagation of waves. Electromagnetic waves are transverse in nature. The graph is as shown below:
What is the difference between Hertz and Maxwell’s theory of electromagnetic waves?
Maxwell gave the basic idea of electromagnetic waves, while Hertz experimentally confirmed the existence of electromagnetic wave. The direction of propagation of the electromagnetic wave is given by vector cross product of the electric field and magnetic field.
What is the mathematical representation of an electromagnetic wave?
Mathematical Representation of Electromagnetic Wave. A plane Electromagnetic wave travelling in the x-direction is of the form. E (x,t)=E_ {max}\\cos (kx-\\omega t+\\Phi ) B (x,t)=B_ {max}\\cos (kx-\\omega t+\\Phi ) In the electromagnetic wave, E is the electric field vector and B is the magnetic field vector.