UPSC Mains Science & Technology 2026 Questions with Model Answers
Every UPSC Mains Science & Technology previous year question from 2026 with a detailed model answer, diagrams, flowcharts and structured answer writing.
Mention salient features of ‘Mission Drishti’. Discuss the imaging techniques used in the satellite launched on 3rd May 2026. Why it is being considered world's first satellite of its kind?
What is agentic Artificial Intelligence (AI)? Explain its working. Describe its applications with suitable examples. Discuss the advantages, risks and challenges associated with agentic AI systems.
Explain by giving two examples, how biotechnology has helped the Indian farmers in processing their perishable crops.
Distinguish between a Fast Breeder Reactor (FBR) and a thermal nuclear reactor. In the context of first indigenously developed prototype FBR at Kalpakkam, explain the term ‘criticality’. What are its implications for clean energy future of our country?