Explain why as the frequency of the regions of the elctromagnetic spectrum increases, the wavelength decreases
821940
Electromagnetic waves move at a fixed speed, the speed of light: 299,792,458 metres per second.\n\nFor example, lets say the speed of light is 1 m/s and a length of string represents a how far the wave has travelled in a second... 1 meters.... it doesn't matter what the frequency is that's as fast as it can go.\n\nThe higher the frequency (more cycles), the shorter the wavelength in the 1 meter length of string.\nso\n1 hz = 1 wavelength per meter (wavelength = 1 m)\n2 hz = 2 wavelengths per meter (wavelength = 0.5 m)
1118486
Suppose a charged particle moves at a more or less constant velocity v1 followed by a finite time interval t of acceleration resulting in a new velocity v2. The radiation emitted always spans a large range of frequencies which (as a rough approximation) goes from frequencies of about 0 to 1/t, dropping to zero at frequencies much higher than 1/t.\n\nFor the acceleration events in your examples: For an electron passing through a sharp local magetic field, t ~ a/v where a is the size of the region with the magnetic field and v the electron velocity. For a collision with a nucleus or other charged particle t ~ b/v where b is the impact parameter (the closest distance between the straight line trajectory of the electron and the particle it's colliding with).\n\nFor purposes of order of magnitude calculations, the total energy per frequency interval radiated by a particle with charge e (in gaussian cgs units) is roughly:\n\nd Energy/d omega  ~ e^2 * |v2-v1|^2/c^3\n\nfor frequencies in the region 0 < omega < 1/t.\n\nThere is never one single frequency emitted except when there's a sustained pure sinusoidal varying current as in a radio antenna. Of course atomic and nuclear transitions produce photons with precise frequencies (wavelengths) but those are not really the result of accelerating charges in the usual sense.
44523
the speed of light(radiation) is a constant and equals the wavelength times the frequency. As wavelength gets longer the freq goes down and vice versa.
663561
If you assume that the radiating source acts as a "Black Body", then the wave lengths become shorter as the temperature goes up.
758851
This is because the nuclear attraction over the electrons increases.\nRemember Coulombs law of electro_nuclear forces.
926730
maxwell eqn \nther is no need to rember  it 's of no use\n till you pass out of school\nbandwidth it's the range of length within \nwhich any elctromagnetic wave may fall or lie in like the bandwidth for visible light 400 nanometers to 700 nanometers
699805
It is caused by electrons being emitted...(aka photons aka light) but certain metals give off certain colours according to their wavelenght...and according to the line spectrum....
108576
It has to do with horizontal and vertical lines of magnetic propogation, and it also deals with the way that EMI fields of energy will dissipate from an antanae when a volatage is applied through it.\n\nBasically you will use different shaped antenna to get better RF coverage to certain areas.
201797
The electrons jump to a higher level and then back to a lower level emitting a photon. This vibration (up one level, down one level) produces radiation below light frequencies also. If enough energy is added and enough electrons are jumping around the metalic bonding is broken and the iron melts.
193770
Electro-magnetic radiation is a carrier of electro-magnetic energy by transmitting the oscillation of the electro-magnetic field through space or matter. The transmission of electro-magnetic radiation is derived from the Maxwell equations. Electro-magnetic radiation has the characteristics of both wave motion and particle motion. \n\n(1) Characteristics as wave motion \nElectro-magnetic radiation can be considered as a transverse wave with an electric field and a magnetic field. A plane wave for an example as shown in Figure 1.2.1 has its electric field and magnetic field in the perpendicular plane to the transmission direction. The two fields are located at right angles to each other. The wavelength L  , frequency F and the velocity V have the following relation. V = L/F\n\nElectro-magnetic radiation is transmitted in a vacuum of free space with the velocity of light c, ( = 2.998 x 108 m/sec) and in the atmosphere with a reduced but similar velocity to that in a vacuum. The frequency n is expressed as a unit of hertz (Hz), that is the number of waves which are transmitted in a second.\n\n(2) Characteristics as particle motion\nElectro-magnetic can be treated as a photon or a light quantum. The energy E is expressed as follow.\nE = h \nwhere h : Plank's constant\n : frequency \n\nThe photoelectric effect can be explained by considering the electro-magnetic radiation as composed of particles. Electro-magnetic radiation has four elements of frequency (or wavelength), transmission direction, amplitude and plane of polarization. The amplitude is the magnitude of oscillating electric field. The square of the amplitude is proportional to the energy transmitted by electro-magnetic radiation. The energy radiated from an object is called radiant energy. A plane including electric field is called a plane of polarization. When the plane of polarization forms a uniform plane, it is called linear polarization. \n\nThe four elements of electro-magnetic radiation are related to different information content as shown in Figure 1.2.2. Frequency (or wavelength) corresponds to the color of an object in the visible region which is given by a unique characteristic curve relating the wavelength and the radiant energy. In the microwave region, information about objects is obtained using the Doppler shift effect in frequency, that is generated by a relative motion between an object and a platform. The spatial location and shape of objects are given by the linearity of the transmission direction, as well as by the amplitude. The plane of polarization is influenced by the geometric shape of objects in the case of reflection or scattering in the microwave region. In the case of radar, horizontal polarization and vertical polarization have different responses on a radar image.\n\nAny wave function can be defined in terms of amplitude, A, and wave-length,  or frequency, v . A full description of such a wave also requires definition of a phase, phi . A simple one-dimensional wave-function, f(x), specifies the height of the wave at any horizontal point x where x is defined in terms of wavelength such that x=1=. This wave function could be represented as either a sine or a cosine function as follows: \n\nf(x)= Acos2pi(vx+o)
56370
they cause electromagnetic stroms
971708
One of the beauties when using Fourier transforms, is the ability to work with a spectrum of modes and act on each of the components individually with a filter. By sampling the function over a period  with a finite number of values  , where  is the size of the sampling interval, the spectrum gets truncated at the shortest wavelength  called Nyquist critical wavelength: this corresponds to exactly 2 mesh points per wavelength, which does however not mean that shorter wavelengths  do not contribute to the Fourier coefficients (4.1#eq.1). Figure 4.3#fig.1 illustrates how they get aliased back into the lower components of the spectrum
619882
frequency doesn't change, wavelength increases, velocity increases
786619
The speed doesn't change.  Wavelength is speed/frequency, so if the frequency doubles and the speed stays the same, the wavelength is cut in half.
509957
Electromagnetic radiations or waves are propagating in space. Electromagnetic waves have electric and magnetic components, the electric field and the magnetic field oscillate at right angles to each other and to the direction of propagation.\nAs any other waves e.m. waves are characterized with  frequency (number of vibrations in one second), wavelenght (the distance from one crest to the next crest in the sinus wave) and radiant energy. \nThe range of the e.m. waves is called the electromagnetic spectrum. The highest frecvency and energy / the lowest wavelenght e.m. radiations are gamma rays (are shorter than the size of the nucleus in the atom) then X rays, ultraviolet radiations, visible light, infrared radiation (heat radiation), microwaves, and radiowaves which has the lowest frequency and longest wavelenght (can be several km long). We can see only the visible light, the other e.m. radiations are invisible to us. But they can have an effect on our organism. They have a lot of technical, medical and other use.\n\nfor more see >>\nhttp://en.wikipedia.org/wiki/Electromagnetic_radiation
391970
The higher the frequency. the shorter the wavelength. The lower the frequency, the longer the wavelength.\n\nIt is an indirectly proportional relationship.
1128548
It's to do with signal / wavelength strength. The more energy a signal has - the further it can travel. Lower frequencies have longer wavelengths which loose their energy quicker than higher, shorter wavelength frequencies meaning they have a shorter range.\n\nThe directional ability is due to the same principal, as a signal looses strength it dissipates and looses direction.