Atomic Physics

Q: which of the following is not a true statement about the Roman effect?let hω be the incindent light energy

(a) :  a quantum of monochromatic light is scattered in elastically
(b) :  a quantum of monochromatic light is scattered elastically
(c) :  energy hω is exchanged with a molecule
(d) :  roman scattering occurs as a result of induce dipole moment
(e) :  None of the Above
Answer:  a quantum of monochromatic light is scattered elastically
Explanation:  in the roman effect,an incident beamof monochromatic light of frequency ω induces a dipole moment in a molecule.this inelastic results in scattered radiation of frequency ω''=ω±ω' depending upon whether hω'of energy is given to or taken from the molecule.the electric field of the light interacts with the molecule .the incident light can be any frequency whereas in flourescence,the incident photon must be at proper molecular absorptive frequency

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