Wikipedia:VideoWiki/C. V. Raman

Introduction
Sir Chandrashekhara Venkata Raman was an Indian physicist born in the former Madras Province in India, who carried out ground-breaking work in the field of light scattering, which earned him the 1930 Nobel Prize for Physics.



Early life and education
CV Raman was born in Trichy, Tamil Nadu to Tamil parents, Chandrashekaran Ramanathan Iyer and Parvathi Ammal. At an early age, Raman moved to the city of Visakhapatnam and studied at St Aloysius Anglo-Indian High School.

Graduation and PG
In 1904 he obtained a BA degree from the University of Madras, where he stood first and won the gold medal in Physics. In 1907 he completed an MSc degree at the University of Madras with highest distinction.



Career
In the year 1917, Raman resigned from his government service after he was appointed the first Palit Professor of Physics at the University of Calcutta. At the same time, he continued doing research at the Indian Association for the Cultivation of Science.

Raman Effect
On 28 February 1928, Raman led an experiment with KS Krishnan, on the scattering of light, when he discovered what now is called the Raman effect.



Findings
It was instantly clear that this discovery was of huge value. It gave further proof of the quantum nature of light.



Raman spectroscopy
The field of Raman spectroscopy came to be based on this phenomenon, and Ernest Rutherford referred to it in his presidential address to the Royal Society in 1929.



FRS
Raman was elected a Fellow of the Royal Society in 1924 and knighted in 1929.

Nobel Prize
He won the 1930 Nobel Prize in Physics "for his work on the scattering of light and for the discovery of the Raman effect".



BHU
Raman delivered lectures on Mathematics and physics during the lecture series organised at Banaras Hindu University from 5 to 8 February 1916. He also held the position of permanent visiting professor at BHU.



Work around acoustics
Raman and his student, Nagendra Nath, provided the correct theoretical explanation for the acousto-optic effect (light scattering by sound waves), in a series of articles resulting in the celebrated Raman–Nath theory.



IISc
In 1933, Raman left IACS to join Indian Institute of Science in Bangalore as its first Indian director.

Raman Research Institute
Raman retired from the Indian Institute of Science in 1948 and established the Raman Research Institute in Bangalore a year later.

Bharat Ratna
In 1954 he was awarded the Bharat Ratna.



Death
At the end of October 1970, Raman collapsed in his laboratory; the valves of his heart had given way. He survived, and later died from natural causes on the early morning of 21 November 1970.



National Science Day
India celebrates National Science Day on 28 February of every year to commemorate the discovery of the Raman effect in 1928.