CV Raman

1. Sir C. V. Raman
By
Nimmi Ouseph

2. C.V.Raman
The Nobel laureatein physics

3. Childhood & Family details….
Story begins in a village
near Tiruchirapalli
Born on 8 Nov.1888
Second child of
R.Chandrasekhara Iyer
& Parvathi Ammal
Family moved to Vishakhapatnam when he was 4
years old.

4. About Raman’s father….
 Father was a lecturer in
Mrs.A.V.Narasimha Rao
College,Visakhapatanam.
 He taught Physics,
Mathematics & physical
geography
 Father was athletic man &
took active interest in
sports

5. Raman – A great reader
Voracious reader
He felt the books were like old friends
He was mainly influenced by 3 books
Light of Asia by Edwin Arnold
The Elements of Euclid by Helmholtz
The Sensations of Tone by Helmholtz

6. Raman’s primary education….
Completed schooling by 11 years
Spent two years of studying in his father’s
college.

7. Raman’s education at Presidency college

8. Encourage by teachers….
Teachers suggested him
to prepare for ICS exam.
ICS was a prestigious
exam in those days to
Indian students.
He attended a medical
examination before the
qualifying exam
Unfortunately he was
disqualified by Civil
surgeon of Madras as he
was unfit to travel to
England.
This was only exam he
failed in his career
He felt grateful to the man
who (Civil surgeon of
Madras) disqualified him

9. IACS….
Raman spotted IACS(Indian Association
for the Cultivation of Science) sign board
and joined.
Performed the legendary
experiments on light.

10. Research begins….
He was communicated with physicists
around the world
His papers published in international
journals
Gave lectures in Calcutta on his
experiments
He was Introduced live demonstrations in
Science.

11. Raman @ waves and sound
He was fascinated by
waves and sound, and
seem to have carried in
his mind the memory of
reading Helmholtz’s
book in his school days.
He was decisive to study
musical instruments.
Explained the working of
Ektara

12. Acoustics - Waves …..

13. Raman’s Ektara…

14. A Scientist thought on violin player…
 Mechanical violin player did not resemble the
instrument which we know
 It had all the essential features of the violin
 Stretched string-resonant box-the bow-stroke length
by adjusting the mechanical wheel.
 This was first mechanical violin for research
 He brought all essential parts from a cycle shop to
make mechanical violin.

15. Research on acoustics continue…..
He continued his research on acoustics
Besides the violin, he studied the Veena,
Tambura, Mridangam, Tabla and others…
Veena Tambura Mridangam Tabla

16. Raman @ around 1917….
Got chance to move into a
full-fledged career in
physics around 1917
Ashutosh Mookerjee(Vice –
chancellor of Calcutta university)
offered him as a Palit
Professor of physics.
Raman had to give up his
job and higher income
Problem he had to overcome
 “A person who is
applying must have foreign
experience”
The rule was dismissed
Became an active member in
university activities

17. Raman with his scholars……

18. University Congress at Oxford
 In 1921 he was given honorary doctorate from Calcutta
University
 Went overseas for the first time
 Visit to University Congress at Oxford
 During his voyage back to India he spent hours
watching the sea from the deck of his ship.
 Struck by its colour

19. Raman’s discovery….
 Water molecule could
scatter light just like air
molecules
 His thought was a radical
in those days.
 In 1922 he wrote a brilliant
essay ‘The Molecular
Diffraction of Light’
 He said light may exist in
quanta, that is, as mass less
particles of energy.

20. K.R.Ramanathan finding the phenomenon
in 1923
Raman’s hunch
His direction towards
finding evidence for the
corpuscular theory of
light.
Discovery of the
Compton effect in 1923
Raman’s hunch was
proved right
K.R.Ramanathan spotted
the phenomenon.
They named the
phenomenon as ‘feeble
fluorescence’.

21. Raman @ Nobel
Raman effect took his
team 4 more years
They were confident in
1927
Discovery on 28th
February….
The famous Raman
effect….the light can
undergo a scattering
through a liquid
resulting in a change in
its frequency….
The date is celebrated as
National Science Day
Booked tickets to Europe
He had to wait 2 years
Received Nobel Prize for
Physics in 1930
When he thought of India
as a British colony he wept.

22. Raman @IIS
 Took up directorship of
Indian Institute of
Science@ Bangalore
 He stayed there until he
retired in 1948
 Equal time to research
and organisational work
 Nurtured many good
students
 Never had a temptation
leaving the country for a
better life…….

23. Raman from 1946 to 1970…..
 Devoted final years to set
up of the Raman
Research Institute in
Bangalore…..
 Running of the Indian
Academy of Science.
 Edited Current Science
& proceedings of the
Academy journals…
 Died on 21
November,1970
 Funeral at the institute
campus itself.
 A solitary tree is
located……

24. THANK YOU 