UPSC Prelims Practice Questions — Capturing sunlight in a bottle and using it when needed

Q1. Which one of the following is the Government of India's flagship scheme dedicated to promoting rooftop solar power at the residential household level?

  • A. PM Surya Ghar: Muft Bijli Yojana
  • B. PM-KUSUM
  • C. SIGHT Programme
  • D. Jawaharlal Nehru National Solar Mission

Q2. In the context of the solar-powered green-hydrogen device developed by CeNS, Bengaluru in 2025, the term 'photoanode' is best described as which one of the following?

  • A. A semiconductor electrode that, on absorbing sunlight, drives the oxidation of water (oxygen evolution) in a photoelectrochemical cell
  • B. A storage electrode that holds the electrical charge generated by solar panels for release on demand
  • C. A proton-exchange membrane that allows protons to pass while blocking electrons
  • D. A reflective concentrator that focuses sunlight onto the catalyst bed to raise its temperature

Q3. Which one of the following is the nodal Ministry responsible for the implementation of the National Green Hydrogen Mission?

  • A. Ministry of New and Renewable Energy
  • B. Ministry of Power
  • C. Ministry of Petroleum and Natural Gas
  • D. Department of Science and Technology