What is dispersion, Physics

Assignment Help:

What is dispersion?

Dispersion within optics consider as the change in phase velocity of an electromagnetic wave along with wavelength. Conversely, when there is a variation of refractive index of the material along with wavelength this leads to dispersion and is termed as material dispersion. In many materials the refractive index reduces with increase into wavelength, λ, and therefore (dn/dλ)<0.

Generally, dispersion can occur because of material properties or because of the geometry of the structure through that the electromagnetic wave is propagating that is the waveguide. Hence, based onto the source of dispersion, this is classified in material dispersion and waveguide dispersion.


Related Discussions:- What is dispersion

L, law of successive disintegration in radioactivity

law of successive disintegration in radioactivity

Give an example of the elapse time for different observers, Two observers, ...

Two observers, A on earth and B in a spacecraft whose speed is 2.00 x 108 m/s, both set their watches to the same time when the ship is abreast of the earth. (a) How much tim

Explain the change in the thermal energy of the water, A cylinder having 1....

A cylinder having 1.00 g of water at the boiling point is heated until all the water turns into steam. The expanding steam pushes a piston 0.365 m. There is a 215-N frictio

What are paramagnetic substances, a) Spin motion of electrons b) On the ...

a) Spin motion of electrons b) On the basis of spin and orbital motion of electrons c) These are feebly attracted in an external magnetic field i.e., have a tendency to go fr

What is the maximum mass for which the blocks remain at rest, A block of ma...

A block of mass m 1 sits on a rough table. The coe?cient of static and kinetic friction between the mass and the table are s and k, respectively. Another mass m 2 is suspended

Moment of inertia, Moment of Inertia In this section we get formulae for...

Moment of Inertia In this section we get formulae for determining the moment of inertia or second moment of a mass around an axis for several common physical shapes. The mome

Write the symbol sad truth table of an and gate, Write the symbol sad truth...

Write the symbol sad truth table of an AND gate define how this gate is realised in practice by using two diodes.

Ceramic capacitors, As the name indicates, the dielectric of this type of c...

As the name indicates, the dielectric of this type of capacitor is a ceramic. The basis of ceramic material is mainly barium titanate or a similar material, but other ceramic subst

Explain the types of hologen and gas discharge, How many types of hologen a...

How many types of hologen and gas discharge are there? This will depend upon the use of the system. Gas discharge lamps, particularly those with a very small plasma area are pr

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd