Relationship between wavelength, frequency, and energy:
The region associated with electromagnetic spectrum which contains light at frequencies and wavelengths that stimulates the rod and cones in the human eye is recognized as the visible region of the electromagnetic spectrum. The eye makes the association with some selected portions of that visible region through color.
Energy is inversely proportional to wavelength and it is directly proportional to the frequency.As the frequency and wavelength are related by a constant (c) we can also write the energy in terms of wavelength by the equation [tex]E = \frac{hc}{\lambda}[/tex].
where h is a Planck's constant,
c is the velocity of the light.
