Chandrasekhara Venkata Raman
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Chandrasekhara Venkata Raman (Tamil: சந்திரசேகர ெவங்கடராமன்) (November 7, 1888-November 21, 1970) was an Indian physicist, who was awarded the 1930 Nobel Prize in Physics for his work on the scattering of light and for the discovery of the effect named after him.
Raman was born in Tiruchirapalli, Tamil Nadu. At an early age Raman moved to the city of Visakhapatnam, Andhra Pradesh. He completed his BA and MA in Physics and English from the Presidency College, Madras (now Chennai). He entered Presidency College, Madras, in 1902, and in 1904 passed his B.A. examination, winning the first place and the gold medal in physics; in 1907 he gained his M.A. degree, obtaining the highest distinctions. He joined the Indian Civil Services as an Assistant Accountant General in Calcutta (now Kolkata).
Raman was a professor of Physics at the University of Calcutta for the next fifteen years. It was during his stay here that his work on optics was recognized.
Raman won the 1930 Nobel Prize in Physics for his work on the scattering of light and for the discovery of the Raman effect. Raman spectroscopy is based on this phenomenon. An interesting anecdote goes that he booked his tickets to Stockholm several months before the Nobel prizes were announced.
Raman also worked in theory of transverse vibration of strings, his analysis of bowed string on the basis of superposition velocities has an upper-hand in explaining bowed string vibration over Helmholtz.
In 1934, Raman became the director of the newly established Indian Institute of Science in Bangalore, where two years later he continued as a professor of physics. In 1947, he was appointed as the first National Professor by the new government of Independent India. He retired from the Indian Institute in 1948 and a year later he established the Raman Research Institute in Bangalore, serving as its director and remained active there until his death on 1970, in Bangalore, Karnataka, at the age of 82.
He also started a company called Travancore Chemical and Manufacturing Co. Ltd. in 1943 along with Dr. Krishnamurthy. The Company during its 60 year history, established 4 factories in Southern India. [1]
He was knighted in 1929 and awarded the Bharat Ratna in 1954.
CV Raman is the uncle of Nobel laureate Subrahmanyan Chandrasekhar.
India celebrates National Science Day on the 28th February of every year to commemorate Raman's discovery in 1928.
Quotes
When he was offered a toast during the Nobel function: Being a strict teetotaller he responded, "Sir, you have seen the Raman effect on alcohol; please do not try to see the alcohol effect on Raman."
Work
- "Dynamical Theory of the Motion of Bowed Strings", Bulletin, Indian Association for the Advancement of Science, 1914
- "On the molecular scattering of light in water and the colour of the sea", Proceedings of the Royal Society, 1922
- "A new type of Secondary Radiation", Nature, 1928
- "A new radiation", Indian Journal of Physics, 1928
- Aspects of Science, 1948
- The New Physics: Talks on Aspects of Science, 1951
- Lecturfdges on Physical Optics, 1959
External links
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