Скачать или смотреть ELECTROMAGNETIC WAVE THEORY|| CHARACTERISTICS OF WAVE||TRICK TO LEARN ELECTROMAGNETIC RADIATION||

ELECTROMAGNETIC WAVE THEORY|| CHARACTERISTICS OF WAVE||TRICK TO LEARN ELECTROMAGNETIC RADIATION||

#electromagneticwavetheory
#wavelength
#frequency
#velocity
#amplitude
#wavenumber
#tricktolearnelectromagneticradiation
#chemistrywithpriya

Electromagnetic wave Theory:-
proposed by James Clark and Maxwell in 1864.
main points are:-
I) energy emit from any source is continuous, in the form of radiation are known as radiant energy.
ii) radiation consist of both electric and magnetic field oscillating perpendicular to each other as well as to the direction of propogation of the radiation.
iii) radiation possess wave nature and travel with the speed of light i.e nearly 3×10to the power 8 m/s.
iv) these waves don't require any material medium for propogation.

because of all above properties these radiation are known as ELECTROMAGNETIC RADIATION.

Characteristics of wave:-
Wavelength:-It is defined as the distance between any two consecutive crest or trough.
represented by lambda
expressed in angstrom, m, cm, nm, pm

Frequency:- it is defined as the number of waves passing through a point in one second
represented by nu
expressed in Hz or cycle/sec

velocity:- it is defined as the linear distance travelled by a wave in one second.
represented by c
expressed in m/sec or cm/sec

amplitude:- it is defined as the distance of crest or trough
represented by a
expressed in the unit of distance

wavenumber:- it is defined as the number of waves present in one cm length
represented by nu bar