E=hv
Where:
E is energy
h is plank's constant
and
v is frequency.
I don't think there is any upper limit, but the longest used in practice are in long wave radio transmission, this can be around 1500 meters
When you rigorously apply Maxwell's Equations to an accelerating charge, you find that an EM wave moves away from this charge. The E-field changes, resulting in a B-field; the B-field changes, resulting in an E-field. This process can be infinitely repeated with no loss of energy, as long as the EM wave travels through a vacuum. Thus, no loss in energy. You also find if you do the above that this wave ALWAYS propagates at the speed of light when in a vacuum -- no exceptions. That's just the way our Universe operates. The EM wave is NOT like a balling rolling on a floor. There is no frictional force on this wave that would cause a loss of energy or a slowing down.
As a seismic wave grows larger, the energy it carries remains constant. The amplitude (height) of the wave increases, but the total energy the wave carries does not change. The energy is redistributed within the wave to accommodate the larger amplitude.
The energy of a wave moves forward with the wave. A wave is moving energy, and the wave carries it in the direction of propagation.
EM radiation with shorter wavelength (higher frequency) is composed of individual photons with higher energy. As their energy increases, so does their ability to penetrate, to ionize, and to damage cells. As wavelength decreases (frequency increases) anywhere past visible light, EM becomes hazardous ... UV damages skin, X-rays penetrate, etc.
The frequency of an electromagnetic (EM) wave is directly proportional to its energy. This means that as the frequency of the EM wave increases, so does its energy. Conversely, a decrease in frequency leads to a decrease in energy of the EM wave.
The energy of an electromagnetic (EM) wave is determined by its frequency and amplitude. The higher the frequency, the higher the energy of the wave. Additionally, the amplitude of the wave also plays a role in its energy content.
radio wave
em wave is generated by photons which emitter the energy in the form of light
The wavelength of an electromagnetic (EM) wave is inversely proportional to its energy - shorter wavelengths correspond to higher energy, and longer wavelengths correspond to lower energy. This phenomenon is described by the equation E = hν, where E is the energy of the EM wave, h is Planck's constant, and ν is the frequency of the wave.
The higher the frequency of a wave, the higher its energy.
The shorter the wavelength of a wave, the higher its energy.
The shorter the wavelength of a wave, the higher its energy.
Radio waves have the lowest energy among the electromagnetic spectrum.
Usually with electromagnetic waves, the frequency and energy is opposite to the wavelength. An EM wave such as radiowaves have huge wavelengths, slow frequencies and small amounts of energy. An EM wave such as X-rays have tiny wavelengths, fast frequencies and large amounts of energy.
The wavelength of an electromagnetic (EM) wave is inversely proportional to its energy. This means that shorter wavelengths have higher energy, while longer wavelengths have lower energy. This relationship is described by the formula E = h*c/λ, where E is energy, h is Planck's constant, c is the speed of light, and λ is the wavelength.
The electromagnetic (EM) spectrum is a name for different types of radiation. Most radiation comes from the sun. Want more info?