# Physics Course/Types of Waves/Light Waves

## Light Wave

Light wave comes from many sources

## Electromagnetic Radiation as Light Wave Characteristics

Electromagnetic radiation as light wave travels at a speed of Light in vaccum C = 3 x 108 and since speed of wave equal product of wavelength and frequency . If one either wavellength or frequency is known then the other quantity can be found by

V = λ f = C
${\displaystyle \lambda ={\frac {C}{f}}}$ or ${\displaystyle f={\frac {C}{\lambda }}}$ .

Electromagnetic Light wave has frequency range from few Hz to GHz and divided into the following spectrums

## Light Wave Phenomenons

When Light wave travel through a medium if there is a bloking object that has a height greater than the wavelength of light wave . Light wave will suffer from the following effects

### Reflection

Light wave being reflected back to the medium it comes from and can create interference with other wave in the medium

### Refraction

Only part of the light wave is passing through . Sound does not reach its destination

### Diffraction

Light passing through slits or narrow openings will produce fringes of Light and Dark Pattern

### Dispersion

Light passing through prism will produce Colored Light of the following color Orange , Yellow , Red , Green , Blue , violet

### Interference

When two light waves interfere either Constructively or Destructively to produce Light Interferences like Bright Light , Stream Light , Dim Light , No Light

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