with respect to electo magnetic radiation explain wavelength, frequency,wavenumber
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Answer:
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Explanation:
Answer:
Explanation:
Electromagnetic radiation can be thought of as particles, called photons, that carry energy in straight-line paths through space.
As they move through space, photons carry electric and magnetic fields that oscillate at a certain frequency. For this reason, we often describe electromagnetic radiation as an electromagnetic wave.
The instantaneous electromagnetic field at a point in space oscillates in a sinusoidal way in time as a photon goes by that point.
An electromagnetic wave can be characterized by any one of the following: its frequency (f), period (p), wavelength (lambda), wavenumber (k) or energy (hf or E). Once any one of these quantities is known, all the others may be calculated.
The electromagnetic spectrum is the set of electromagnetic radiations of all possible wavelengths. It is divided into the following regions: gamma ray, X-ray, ultraviolet, visible, infrared, and radio. Some of these regions are commonly divided into smaller subregions.
All electromagnetic waves are similar to each other. The only thing that distinguishes electromagnetic waves in one region from those in another is the kinds of interactions those waves have with matter.