General Knowledge - Days and Years - Discussion

Discussion :: Days and Years - Section 1 (Q.No.17)

17. 

India Celebrates February 28 every year as 'National Science Day' because on this day

[A]. first Indian Space craft was launched
[B]. Nehru laid the foundation of Science labs all over India
[C]. in 1928 C.V. Raman discovered what was later called the 'Raman Effect'
[D]. Vikram Sarabhai was born

Answer: Option C

Explanation:

No answer description available for this question.

Nikhil said: (Feb 15, 2012)  
What is mean by 'Raman Effect'?

Sonali said: (Jul 10, 2012)  
Raman effect, change in the wavelength of light that occurs when a light beam is deflected by molecules. The phenomenon is named for Sir Chandrasekhara Venkata Raman, who discovered it in 1928. 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.

Anup R Khute said: (Mar 9, 2015)  
In 1928, Sir C.V. Raman change the wavelength of light when the light beam is deflected by molecules. This day make the discovery of Raman effect of Indian Physicist in February 28, 1928.

Saurabh Sharma said: (Nov 18, 2015)  
He got Nobel prize for that invention.

Sattajyoti Pattanayak said: (Dec 21, 2016)  
He got the Nobel prize in Physics.

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