Identify the type of elecromagnetic waves,whose method of porduction is associated with
vibration of atoms and molecules and Also give the approximate range of wavelengths .

Identify the type of elecromagnetic waves,whose method of porduction is associated with a klystron valve,

Identify the type of elecromagnetic waves,whose method of porduction is associated with deay of atomic nulei.Also give the approximate range of wavelengths .

Identify the electromagnetic waves whose wavelength vary as 10^-3 Write one use of it.

Identify the electromagnetic waves whose wavelength vary as 10^-12 Write one use of it.

Name the part of electromagnetic spectrum,whose wavelength lies in the range of 10^(-10) m .Give its one use.

A particle is moving with a speed three times as that of an electron.If the ratio of de-Broglie wavelength of the wave associated with the particle to that with the electron is 1.813 xx 10^(-4) ,find the mass of hte particle.Can you identiify hte particle?Give that mass of the electron = 9.1 xx 01^(-31) kg.

Colloidal sol of sulphur is an example of multimolecular colloid while colloidal sol of starch represents macromolecular colloid. Difference between associated colloids, multimolecular and macromolecular colloids. Multimolecular colloids are formed by the aggregation of a large number of simple molecules, macromolecular colloids consists of macromolecules having size in the colloidal range. On the other hand, associated colloids also called micelles, are generally electrolytes. They exist as ions at low concentration. However, above a particular concentration called critical micelle concentration (CMC) and above a particular temperature called Kraft temperature, these get associated and exhibit colloidal behaviour. Soap is a common example of associated colloids. Define multimolecular colloid?

Read the given passage and answers following questions : There are mainly two type of adsorption of gases on solids. If accumulation of gases on the surface of solid occurs on account of weak vander waal forces, the adsorption is termed as physical adsorption. When gas molecules or atoms held to solid surface by chemical bonds, adsorption is termed as chemical adsorption. The chemical bonds may be covalent or ionic. Chemical adsorption involves a high energy of activation therefore it is referred as Activated adsorption. A physical adsorption at low temperature may pass into chemical adsorption temperature is increased. Give conditions of temperature which favours physical adsorption.

Assume that the de Broglie wave associated with an electron can from a standing wave between the atom arrange in a one dimensional array with nodes at each of the atomic sites. It is found that one such standing wave if the distance d between the atoms of the array is 2 A^0 A similar standing wave is again formed if d is increased to 2.5overset @A . Find the energy of the electrons in electron volts and the least value of d for which the standing wave type described above can from .