Sir C V Raman was awarded Nobel prize for his work on

Correct option is A

The correct answer is: (A) Light Scattering

Explanation:
Sir C.V. Raman was awarded the Nobel Prize in Physics in 1930 for his work on light scattering, specifically for his discovery of the Raman Effect. The Raman Effect refers to the change in the frequency of light when it is scattered by molecules. This discovery has had profound implications in fields like spectroscopy, material science, and chemistry.

Information Booster:

• The Raman Effect involves the scattering of light by molecules, causing a shift in its frequency, which helped in understanding the molecular structure of various substances.

• Raman’s work demonstrated that light could interact with matter in a way previously unknown.

• The Raman Effect is widely used in Raman spectroscopy to study molecular vibrations.

• Sir C.V. Raman's contribution revolutionized the field of optical physics.

Additional Information:

• Cryogenics: This is the study of the behavior of materials at extremely low temperatures, but it was not the subject of C.V. Raman's Nobel work.

• Radioactivity: This refers to the phenomenon of radioactive decay, studied by Marie Curie, not C.V. Raman.

• Sonometer: An instrument used to study sound and vibrations, unrelated to C.V. Raman's Nobel-winning research.