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National Science Day

National Science Day is celebrated annually on February 28th in India to commemorate the discovery of the Raman effect by Indian physicist Sir C.V. Raman on this day in 1928. The day is a tribute to the contribution of scientists and researchers towards the progress of science and technology in the country. It is a reminder to the importance of scientific research and its impact on the society.

Raman Effect 
It refers to the scattering of light when it passes through a material, which causes achange in its wavelength and frequency. This change in wavelength and frequency is called Raman scattering.
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