C. V. Raman and the Raman Effect
The physicist who discovered in 1928 that light scattered by a liquid changes colour, India's first science Nobel.
What the paper can ask
- Raman Effect discovered in 1928 at IACS Calcutta with K. S. Krishnan.
- Nobel Prize in Physics 1930, the first for an Asian in physics; Bharat Ratna 1954.
- Born 7 November 1888 in Tiruchirappalli; director of the Indian Institute of Science from 1933.
- Founded the Raman Research Institute in Bangalore after retiring from IISc in 1948.
Why exams ask
The date of National Science Day, the Nobel year and the institute where the discovery was made are asked.
The full story
Chandrasekhara Venkata Raman, born in Tiruchirappalli in 1888, discovered in 1928 at the Indian Association for the Cultivation of Science in Calcutta, working with K. S. Krishnan, that a small part of light passing through a transparent material scatters with a changed wavelength. This Raman Effect won him the 1930 Nobel Prize in Physics, the first for an Asian in that field.
In the news
Test yourself
1.National Science Day is observed on which date, commemorating the discovery of the Raman Effect?
Correct. C. V. Raman announced the Raman Effect on 28 February 1928.
Not quite. C. V. Raman announced the Raman Effect on 28 February 1928. It goes into your error book.
2.The Raman effect, discovered in 1928, concerns
Correct. C. V. Raman found that a small fraction of light scattered by a substance changes wavelength, revealing molecular vibrations; he won the 1930 Nobel Prize in Physics.
Not quite. C. V. Raman found that a small fraction of light scattered by a substance changes wavelength, revealing molecular vibrations; he won the 1930 Nobel Prize in Physics. It goes into your error book.