What is National Science Day 2023?

About

• The theme of National Science Day 2023 will be Global Science for Global Wellbeing.
• The government of India designated 28 February as National Science Day (NSD) in 1986.
• On this day Sir C.V. Raman announced the discovery of the ‘Raman Effect’ for which he was awarded the Nobel Prize in 1930.

What is Raman Effect?

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

Q1) What is Nobel Prize?

The Nobel Prize is an international award administered by the Nobel Foundation in Stockholm, Sweden, and based on the fortune of Alfred Nobel.It is awarded annually for outstanding work in physics, chemistry, physiology or medicine, literature, economics, and the promotion of peace.

Source: Union Minister Dr Jitendra Singh unveils the theme for National Science Day 2023, titled “Global Science for Global Wellbeing” at National Media Centre, Delhi

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