Diffraction by solids, Chemistry

Assignment Help:

DIFFRACTION BY SOLIDS

Diffraction performs when a wave interacts with a lattice whose dimensions are of the same order of magnitude as that of the wavelength of the waves. The lattice scatters the radiation, and the scattered radiation from one point interferes with the radiation from others so as to either reduce it (destructive interference), or enhance the amplitude of the radiation (constructive interference). The pattern of destructive and constructive interference yields information about molecular and crystal structure.

1228_diffraction by solid.png

 

Fig.1. Constructive (a) and destructive (b) interference of two

waves.

In the case of solids, this wavelength must be of the same order as the crystal lattice spacing (ca. 0.1nm), and there are three primary types of radiation which are used for structural studies of solids. The most commonly used radiation, X-rays, have wavelengths of the order of 0.15 nm, and in the course of diffraction studies are scattered by the electron density of the molecule.


Related Discussions:- Diffraction by solids

P block, properties of halogens

properties of halogens

ATOMIC STRUCTURE, CALCULATE THE MOMENTUM OF APARTICLEWHICH HAS WAVELENGTH ...

CALCULATE THE MOMENTUM OF APARTICLEWHICH HAS WAVELENGTH OF 2A

Blast furnace, what are uses of slag in blast furnace

what are uses of slag in blast furnace

Emf of cell, Real life example on ph determination and Ksp

Real life example on ph determination and Ksp

Cell, what is cell?

what is cell?

Define atomic mass units, Q. Define atomic mass units? Atomic mass Scie...

Q. Define atomic mass units? Atomic mass Scientists have set up a standard for the measurement of atomic mass by assigning the carbon-12 atom a mass of 12 atomic mass units (a

Show the rate of decrease in atomic radius, Q. Show the rate of decrease in...

Q. Show the rate of decrease in atomic radius? The rate of decrease in atomic radius along the lanthanide series and also along the actinide series is even less than that in th

Production of ammonia, Q. How to prepare ammonia in industrial level? ...

Q. How to prepare ammonia in industrial level? Ans. Production of Ammonia Ammonia, NH 3 , can be prepared by adding a strong alkali metal (such as sodium) to an ammon

S block, list down all the chemical properties of s- block?

list down all the chemical properties of s- block?

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