, It is a branch of science that deals with the study of interaction of electromagnetic
radiation with matter.
Electromagnetic radiation consists of discrete packages of energy, called as
photons.
Photons consists of an oscillating electric field(E) & an oscillating magnetic field(M)
which are perpendicular to each other.
, Frequency(ν): It is defined as the number of times electrical field radiation oscillates in one
second. The unit for frequency is Hertz(Hz).
1Hz = 1 cycle per second
Wavelength(λ): It is the distance between two nearest parts of the wave in the same phase
i.e. distance between two nearest crest or troughs.
As photon is subjected to energy, so
E=hν = hc/ λ
radiation with matter.
Electromagnetic radiation consists of discrete packages of energy, called as
photons.
Photons consists of an oscillating electric field(E) & an oscillating magnetic field(M)
which are perpendicular to each other.
, Frequency(ν): It is defined as the number of times electrical field radiation oscillates in one
second. The unit for frequency is Hertz(Hz).
1Hz = 1 cycle per second
Wavelength(λ): It is the distance between two nearest parts of the wave in the same phase
i.e. distance between two nearest crest or troughs.
As photon is subjected to energy, so
E=hν = hc/ λ
