The electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays. To tour the electromagnetic spectrum, follow the links below!
What are electromagnetic waves Class 7?
Basically, there are 7 different types of Electromagnetic Wave, these are categorized by in terms of frequency and wavelength. These 7 types of waves are as follows: Radio Waves, Microwaves, Infrared, Visible, Ultraviolet, X-Ray, Gamma Rays.
Which of the 7 major region of electromagnetic spectrum have the highest frequency?
The waves that live in the gamma ray section have the highest frequencies and smallest wavelengths of all the EM waves. In fact, there is no lower limit to the wavelength of a gamma ray. Some have wavelengths that are smaller than an atom! Gamma rays are emitted naturally from things undergoing radioactive decay.
What is the strongest electromagnetic wave?
The Electromagnetic spectrum lists the most powerful EMR, gamma rays, to the least powerful EMR, radio waves. In addition, the highest energy waves (gamma, x-ray) have the shortest wavelengths.
What is the order of wavelength?
The correct order of the wavelength is as follows: Radio wave>UV rays >X-ray>γ−rays.
Which is the correct order with increasing wavelength?
The answer is C) ultraviolet What are the 7 electromagnetic waves and their uses?
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.
What are electromagnetic waves Class 8?
Electromagnetic waves are also known as EM waves. Electromagnetic radiations are composed of electromagnetic waves that are produced when an electric field comes in contact with the magnetic field. It can also be said that electromagnetic waves are the composition of oscillating electric and magnetic fields.
What are electromagnetic waves Class 10?
Therefore Electromagnetic waves are defined as the waves formed by an oscillating or varying magnetic and electric field so that they are perpendicular to each other and also perpendicular to the direction of propagation. The equation of EM waves are obtained from the solutions of Maxwell’s equations. 1.
How many types of waves are there?
Waves come in two kinds, longitudinal and transverse. Transverse waves are like those on water, with the surface going up and down, and longitudinal waves are like of those of sound, consisting of alternating compressions and rarefactions in a medium.
What comprises the electromagnetic spectrum?
The entire electromagnetic spectrum, from the lowest to the highest frequency (longest to shortest wavelength), includes all radio waves (e.g., commercial radio and television, microwaves, radar), infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
How many types of radiation are there?
There are four major types of radiation: alpha, beta, neutrons, and electromagnetic waves such as gamma rays. They differ in mass, energy and how deeply they penetrate people and objects.
What is the weakest electromagnetic wave?
Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.
Which wave has lowest frequency?
Radio waves have the lowest frequency.
Is light electromagnetic waves?
The terms light, electromagnetic waves, and radiation all refer to the same physical phenomenon: electromagnetic energy. … Radio and microwaves are usually described in terms of frequency (Hertz), infrared and visible light in terms of wavelength (meters), and x-rays and gamma rays in terms of energy (electron volts).