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What is Raman Effect all about?

<p>The last day of the 2nd month is celebrated as National Science day across the country… But are you aware of why is it celebrated today? Every year 28th of February is celebrated as National Science day to celebrate the announcement of the “Raman effect.” In 1986, the Government of India designated February 28 as National Science Day, to commemorate the announcement of the discovery of the “Raman effect”. Also Read: Union Finance Minister Presented Economic Survey of 2022-2328th of February was chosen to celebrate the announcement of the discovery of the “Raman Effect” by then Prime Miniter of the country Rajiv Gandhi. The Raman Effect was the discovery which won physicist Sir CV Raman his Nobel Prize in 1930. Conducting a deceptively simple experiment, Raman discovered that when a stream of light passes through a liquid, a fraction of the light scattered by the liquid is of a different colour. This discovery was immediately recognised as groundbreaking in the scientific</p>

By mediology 01:12 PM Feb 28, 2023 IST

The last day of the 2nd month is celebrated as National Science day across the country… But are you aware of why is it celebrated today? Every year 28th of February is celebrated as National Science day to celebrate the announcement of the “Raman effect.” In 1986, the Government of India designated February 28 as National Science Day, to commemorate the announcement of the discovery of the “Raman effect”.

Also Read: Union Finance Minister Presented Economic Survey of 2022-23

28th of February was chosen to celebrate the announcement of the discovery of the “Raman Effect” by then Prime Miniter of the country Rajiv Gandhi. The Raman Effect was the discovery which won physicist Sir CV Raman his Nobel Prize in 1930. Conducting a deceptively simple experiment, Raman discovered that when a stream of light passes through a liquid, a fraction of the light scattered by the liquid is of a different colour. This discovery was immediately recognised as groundbreaking in the scientific community, being the subject of over 700 papers in the first seven years after its announcement.

What is Raman Effect all about?

Simply put, the Raman effect is all about the stream of light passing through a liquid, a fraction of the light scattered by the liquid is of a different colour and all of this happens because of the change in the wavelength of light that occurs when a light beam is deflected by molecules.

In general, when light interacts with an object, it can either be reflected, refracted or transmitted. One of the things that scientists look at when light is scattered is if the particle it interacts with is able to change its energy. The Raman Effect is when the change in the energy of the light is affected by the vibrations of the molecule or material under observation, leading to a change in its wavelength.

Today, this method has a wide variety of applications, from studying art and other objects of cultural importance in a non-invasive fashion to finding drugs hidden inside luggage at customs.

Theme 2023:

This year’s edition is being celebrated under the theme of “Global Science for Global Wellbeing”, in light of India’s G20 presidency.

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