UPSC Current affairs - India’s Ukraine dilemma

National Science Day



  • The Prime Minister, Shri Narendra Modi has greeted the scientists on National Science Day.



  • National Science Dayis celebrated in India on 28 February each year to mark the discovery of the Raman effect by Indian physicist Sir C. V. Raman on 28 February 1928.
  • In 1986, the National Council for Science and Technology Communication(NCSTC) asked the Government of India to designate February 28 as National Science Day.
  • The event is now celebrated all over India in schools, colleges, universities and other academic, scientific, technical, medical and research institutions.
  • On the occasion of the first NSD (National Science Day)(26 February 2020 ) NCSTC announced the institution of the National Science Popularization awards for recognizing outstanding efforts in the area of science and communication.


C V Raman

  • Sir Chandrasekhara Venkata Raman was an Indian physicist known for his work in the field of light scattering.
  • Using a spectrograph that he developed, he and his student  S. Krishnan discovered that when light traverses a transparent material, the deflected light changes its wavelength and frequency.
  • This phenomenon, a hitherto unknown type of scattering of light, which they called “modified scattering” was subsequently termed the Raman effect or Raman scattering.
  • Raman received the 1930 Nobel Prize in Physics for the discovery and was the first Asian to receive a Nobel Prize in any branch of science.

Source: THE HINDU.