Photo chemistry

Photo= light

photochemistry is the branch of chemistry which deals with the study of the machanism of the chemical reactions which is prefer by the action of light such as x-rays, gama rays, UV rays, elecron protan neutron. which is relase by the action of photan or quanta. (quanta is known as the smallest packege of energy.)

Photon--

Photan or quanta is express as the fallowing equation -

  E=hv         

                         h=palank constant

                         v=frequency of radiation

v=c/^

           c=velasity of light

           ^=wave lenth of light

in the photochemical reaction the light is invale there frequency is  1000 A* to 10000A*

or there energy is 23 k calary to 230kcalary.