science hard mcq

High-temperature superconductors typically belong to which material class?

  1. Cuprates
  2. Iron-based pnictides
  3. Nickelates
  4. All of these

Answer: All of these

Cuprates (e.g., YBCO, Tc90K), iron pnictides (e.g., SmFeAsO, Tc55K), nickelates (recent discovery) exhibit superconductivity above liquid nitrogen temperature. Mechanism remains unsolved; key for lossless power transmission. [[NCERT Physics Class 12, DST Reports]]

Topic Physics - Quantum Materials
Exam Relevance UPSC CSE, SSC Scientific Assistant, CSIR NET

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