How is C.V Raman connected with The National Science Day

  • On February 28, 2020 India will celebrate the National Science Day, an annual feature observed since 1987.

  • National Science Day came about to etch the memories of a significant discovery by Sir C V Raman, a physicist and a great thinker.

  • It was on February 28 in the year 1928 that C V Raman discovered what is labelled as the Raman Effect referring to the scattering of light particles under a particular environment.
India will celebrate the National Science Day on February 28, 2020. The theme decided for this year is "Women in Science." Commemorating the National Science Day, the country will see a number of programs organized at schools and colleges, and other higher education, research and technical institutions based on the theme earmarked for the year. National Science Day is an annual feature celebrated year on year right from 1987.

Going to the roots

National Science Day Commemorates the discovery of Raman Effect by Sir C V Raman, a renowned physicist and a thinker hailing from Tamil Nadu, India. On February 28, 1928, Raman discovered what was later labelled as Raman Effect, a wonderful light scattering phenomenon which created strides in the physics of Light. This notable discovery won him the Nobel Prize in 1930, a couple of years later.


In 1986, the NCSTC recommended to the Government of India that February 28 could be designated as National Science Day. The First National Science Day (NSD) was celebrated on February 28, 1987. On this day, NCSTC announced institution of the National Science Popularization awards for recognizing outstanding efforts in the area of science communication and popularization.

About Sir C V Raman

Raman was born on November 7, 1988. Hailing from Thiruvanaikovil, Tiruchirapalli in Tamil Nadu, the great scientist and thinker carried out an outstanding research in the realms of light physics. After serving for several years with the government in the department of Accounts, he founded several organizations like Indian Science Academy, Current Science Association and Raman Research Institute and journals like Journal of Physics, Current Science, and others. In 1954, he was honored by the Government of India during his life time itself with the highest civilian award of the country Bharat Ratna.


What is Raman Effect?

A path breaking discovery in spectroscopy, Raman Effect refers to the change of wavelength of light when a light ray is deflected by molecules. C V Raman found that a fraction of the incident light is scattered when a light beam traverses through a dust-free, transparent sample of a chemical compound. While much of this scattered light has the same wavelength, a small part is found to have a different wavelength than the incident light. This feature is known as the Raman Effect, named in honor of the renowned scientist C V Raman, the brain behind this momentous discovery.

Theme of National Science Day


The National Science Day is celebrated with a wide range of events and programs like special programs on TV and Radio, science exhibitions, science movies, debates, quizzes, public speeches, live projects, and several other activities. Year on year, the theme of the National Science Day would be announced much in advance so that the programs can be tuned to the given concept. The theme of the NSD in 2020 is "Women in Science."