3. 28th February

4. “National Science
Day”
is commemorated in
the honors of
Sir C.V.Raman
for his legacy, who
discovered Raman
effect on 28th
Feb. 1928.

5. IMPORTANCE OF THE
DAY
• It was a g r eat
achievement and for
that he r eceived Nobel
Prize which was the
fir st Nobel Prize in
science for Asia. Hence
the day is of g r eat
impor tance for Indian
science and scientific

6. HISTORY
In 1986, NTSC took
initiative to get the
Government of India to
designate February 28 as
the National Science Day
which is now celebrated
all over India.

7. Through the life of
C.V
Raman…

8. Chandrashekhara Venkata
Raman was born on
November 7, 1888
in Tir uchinapalli , Tamil-
Nadu. He was the second
child of Chandrasekhar Iyer
and Parvathi Amma.

9.  After
his studies, in 1917,
at the age of 29, Raman
became a Professor at
Calcutta university.
 In
1919 Raman elected as
the secretary of Indian
Association for the
cultivation of science

10. In 1929 the British
Government knighted
him; thereafter
Professor Raman came to
be known as
Professor Sir C.V.Raman.

11. In 1930, Sir C.V. Raman
was awarded with Nobel
Prize in Physics for his
work on scattering of
light. The discovery was
later christened as "Raman
Effect".

12. Showing his Nobel prize to a
British Journalist

13. In order to encourage
scientific research in
India, Raman
established the
Indian Academy of
Science Banglore in
1934 and the Raman
Research Institute
(1948).

14. Sir C.V. Raman during a lecture at the
Raman Research Institute in Bangalore,
circa 1959.

15. In 1948 this great
scientist entered on one
more active phase of
life when he became
the Director of the
Raman Research
Institute.

16. With awards and mementos stored in a steel
almirah at the Institute, circa 1959.

17. What is Raman effect?

18. The wavelength
of a small
fraction of the
radiation
scattered by
certain
molecules
differ from
that of the
incident beam;