A power point presentation on Sir C V Raman.

1. BIOGRAPHY
Sir C. V. Raman
By
M.Ramki
Air Force School, RedFields

2. C.V.Raman
The Nobel laureate in 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. Tiruchirapalli….

5. 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

6. Raman…an intelligent
 Raman was not physically strong
 He was very intelligent
 Preferred to read books always.

7. 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

8. Light of Asia by Edwin Arnold

9. The Elements of Euclid

10. The Sensations of Tone

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

12. Raman’s education at Presidency college

13. B.A. course at Presidency College
He joined the B.A. course at Presidency
College when he was 13 years old.
Youngest in his class
Unimpressive in appearance
In his first English class he was addressed
by Professor E.H.Eliot.
He stood university first in the B.A.exams.
Stunned all sceptics

14. 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

15. M.A. course at Presidency College
 He joined M.A. physics
 He was given freedom to study on his own.
 Attended only one lecture during the whole 2
years of the M.A.
 Original thinking developed
 Worked on light waves
 Published papers in Philosophical Magazine
 He was the first student of Presidency College to
publish a research paper.
 Passed the M.A. exams in 1907,stood first in the
University.

16. As a student in the Physics Lab
Different thinking about Light Diffraction

17. Light diffraction

18. Experiment on light

19. Philosophical Magazine

20. Raman @ Marriage
 Married Lokasundari
 Decided to write FCS(Financial Civil Services)
-forerunner of IAAS(Indian Administrative and Audit Service)
 He was topped in the examination.
 Went to Calcutta to work as AAG (Assistant
Accountant General)

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

22. Raman with his associates at IACS

23. Raman led a double life…..
Worked as a
finance
officer all day
Research at
IACS
until night

24. 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.

25. Nature…

26. 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

27. Playing Ektara…..

28. Acoustics - Waves …..

29. Raman’s Ektara…

30. The family of Musical instruments…..

31. Research on Violin….
 Took up violin for study
 First time a scientific
understanding was
established
 Raman’s studies on the violin
were extensive and published
a book entitled On the Mechanical
Theory of Vibrations of Musical
Instruments of the Violin family with
experimental Results : Part I

32. 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.

33. 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

34. 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

35. Raman with his scholars……

36. Calcutta University..

37. Raman’s brilliant students
Ramanathan K.S.Krishnan Suri Bhagavantam

38. 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

39. 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.

40. 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.

41. 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…….

42. IIS DIRECTOR…

43. 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……

44. Raman Research Institute….

45. Indian Academy of Sciences…

46. A solitary tree is located at Raman Research Institute……

47. Raman the great….
• Contributed to Indian science with his
deep and genuine passion for Physics
• He improvised from scratch….
• His determination, spirit and contributions
will remain special in the practice of
science in India…….