Science & Technology / 2021
Mains PYQ - 2021
Section A
Section B
Ques 1
How is the S-400 air defence system technically superior to any other system presently available in the world? (150 words)
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Ques 1
What are the research and developmental achievements in applied biotechnology? How will these achievements help to uplift the poorer sections of the society? (250 words)
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Ques 2
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 ? (250 words)
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