C.V. Raman | Biography & Facts (2024)

Indian physicist

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Who is C.V. Raman?

C.V. Raman was an Indian physicist who won the Nobel Prize for Physics in 1930 for his discovery of what became known as the Raman effect. He significantly influenced the growth of science in India through his teaching, his support of nearly every Indian research institution of his time, and his founding of the Indian Academy of Sciences.

What did C.V. Raman discover?

C.V. Raman discovered the Raman effect, which occurs when light that shines through a material is scattered and its wavelength changes from that of the original incident light because of its interactions with the molecules in the material.

Why did C.V. Raman win the Nobel Prize?

C.V. Raman was awarded the 1930 Nobel Prize in Physics for his discovery of the Raman effect, in which light that passes through a material is scattered and the wavelength of the scattered light is changed because it has caused an energy state transition in the material’s molecules.

C.V. Raman (born November 7, 1888, Trichinopoly, India—died November 21, 1970, Bangalore) was an Indian physicist whose work was influential in the growth of science in India. He was the recipient of the Nobel Prize for Physics in 1930 for the discovery that when light traverses a transparent material, some of the light that is deflected changes in wavelength. This phenomenon is now called Raman scattering and is the result of the Raman effect.

After earning a master’s degree in physics at Presidency College, University of Madras, in 1907, Raman became an accountant in the finance department of the Indian government. He became professor of physics at the University of Calcutta in 1917. Studying the scattering of light in various substances, in 1928 he found that when a transparent substance is illuminated by a beam of light of one frequency, a small portion of the light emerges at right angles to the original direction, and some of this light is of different frequencies than that of the incident light. These so-called Raman frequencies are the energies associated with transitions between different rotational and vibrational states in the scattering material.

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Raman was knighted in 1929, and in 1933 he moved to the Indian Institute of Science, at Bangalore, as head of the department of physics. In 1947 he was named director of the Raman Research Institute there and in 1961 became a member of the Pontifical Academy of Science. He contributed to the building up of nearly every Indian research institution in his time, founded the Indian Journal of Physics and the Indian Academy of Sciences, and trained hundreds of students who found important posts in universities and government in India and Myanmar (Burma). He was the uncle of Subrahmanyan Chandrasekhar, who won the 1983 Nobel Prize for Physics, with William Fowler.

The Editors of Encyclopaedia BritannicaThis article was most recently revised and updated by Encyclopaedia Britannica.