The Nobel Prize in Physics of 2014 was jointly awarded to Akasaki, Amano and Nakamura for the invention of Blue LEDs in the 1990s. How has this invention impacted the everyday life of human beings ?
- 2021
- GS Paper III
- 15 marks
Model answer
More GS Paper III 2021 questions
- What are the present challenges before crop diversification? How do emerging technologies provide an opportunity for crop diversification? 15 marks
- How did land reforms in some parts of the country help to improve the socio-economic conditions of marginal and small farmers ? 10 marks
- How is the S-400 air defence system technically superior to any other system presently available in the world? 10 marks
- Explain the difference between computing methodology of India’s Gross Domestic Product (GDP) before the year 2015 and after the year 2015. 10 marks
- Describe the key points of the revised Global Air Quality Guidelines (AQGs) recently released by the World Health Organisation (WHO). How are these different from its last update in 2005? What changes in India’s National Clean Air Programme are required to achieve these revised standards ? 10 marks
- Distinguish between Capital Budget and Revenue Budget. Explain the components of both these Budgets. 10 marks