space medium mcq

NISAR satellite will use dual-frequency SAR (L-band and S-band) to measure surface deformation with _______ accuracy.

  1. Meter-level
  2. Centimeter-level
  3. Millimeter-level
  4. Kilometer-level

Answer: Centimeter-level

NISAR's interferometric SAR measures crustal deformation, ice flow, and biomass changes at cm-scale resolution every 12 days globally.

Topic Space Missions - Earth Observation
Exam Relevance UPSC Prelims, Current Affairs

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