1. Sir C. V. Raman By Nimmi Ouseph
BIOGRAPHY
Sir C. V. Raman By
Nimmi Ouseph

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. 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…. Performed the legendary experiments on light.
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 EKTARA
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
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…. 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
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

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.
Took up directorship of Indian Institute of 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 