Importance of National Science Day February 28 In Telugu and Raman Effect Vedios

History of National Science Day

National science day is celebrated on every year on 28 February.( National science day is celebrated as one of the main science festivals in India every year during which students of the schools and colleges demonstrate various science projects and national and state science institutions demonstrate their latest researches.) The celebration also includes public speeches, radio-TV talk shows, science movies, science exhibitions based on themes and concepts, watching the night sky, live projects, research demonstration, debates, quiz competitions, lectures, science model exhibitions and many more activities.

What is Raman Effect?
Raman Effect is a phenomenon in spectroscopy discovered by the eminent physicist while working in the laboratory of the Indian Association for the Cultivation of Science, Kolkata.

Raman Effect, change in the wavelength of light that occurs when a light beam is deflected by molecules. When a beam of light traverses a dust-free, transparent sample of a chemical compound, a small fraction of the light emerges in directions other than that of the incident (incoming) beam. Most of this scattered light is of unchanged wavelength.

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 A small part, however, has wavelengths different from that of the incident light; its presence is a result of the Raman Effect.

• The theme of the year 2018 is "Science and Technology for a sustainable future."

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