# A report onWavelength and Wave

Electromagnetic waves, according to their frequencies (or wavelengths) have more specific designations including radio waves, infrared radiation, terahertz waves, visible light, ultraviolet radiation, X-rays and gamma rays.

- Wave

Sinusoids are the simplest traveling wave solutions, and more complex solutions can be built up by superposition.

- Wavelength

## Frequency

Number of occurrences of a repeating event per unit of time.

Number of occurrences of a repeating event per unit of time.

For cyclical phenomena such as oscillations, waves, or for examples of simple harmonic motion, the term frequency is defined as the number of cycles or vibrations per unit of time.

For periodic waves in nondispersive media (that is, media in which the wave speed is independent of frequency), frequency has an inverse relationship to the wavelength, λ (lambda).

In physics, electromagnetic radiation (EMR) consists of waves of the electromagnetic (EM) field, propagating through space, carrying electromagnetic radiant energy.

The position of an electromagnetic wave within the electromagnetic spectrum can be characterized by either its frequency of oscillation or its wavelength.

## Wind wave

Water surface wave that occurs on the free surface of bodies of water.

Water surface wave that occurs on the free surface of bodies of water.

Wave length (distance from crest to crest in the direction of propagation)

Wind waves are mechanical waves that propagate along with the interface between water and air; the restoring force is provided by gravity, and so they are often referred to as surface gravity waves.

## Refractive index

Optical medium is a dimensionless number that gives the indication of the light bending ability of that medium.

Optical medium is a dimensionless number that gives the indication of the light bending ability of that medium.

The refractive index can be seen as the factor by which the speed and the wavelength of the radiation are reduced with respect to their vacuum values: the speed of light in a medium is v = c/n, and similarly the wavelength in that medium is λ = λ0/n, where λ0 is the wavelength of that light in vacuum.

It can also be applied to wave phenomena such as sound.

## Wave interference

In physics, interference is a phenomenon in which two waves combine by adding their displacement together at every single point in space and time, to form a resultant wave of greater, lower, or the same amplitude.

The fringe spacing increases with increase in wavelength, and with decreasing angle