3. RAMAN EFFECT
•When a beam of monochromatic light
was passed through organic liquids such
as benzene, toluene, etc., the scattered
light contained other frequencies in
addition to that of the incident light.
4. RAMAN LINES
• He took a round – bottom glass flask was filled with pure
dust free benzene.
• The liquid was strongly illuminated by the mercury blue
line of wavelength 435.nm.
• He found that in the spectrum obtained there were lines
with original wavelength and also with longer and shorter
wavelength.
5. LINES OBTAINED
• STOKES LINES: Lines having wavelength greater
than that of the incident
wavelength.
• ANTI STOKES : Lines having wavelength
LINES shorter than that of the
incident wavelength.
• UNMODIFIED: Line having the wavelength of the
LINE incident wavelength.
