space medium Fill in the Blank

Electroforming nickel shells are used to manufacture lightweight _______ for X-ray telescopes.

  1. Mirrors
  2. Detectors
  3. Filters
  4. Collimators

Answer: Mirrors

Nickel electroformed mirror shells replicated from mandrels enable nested Wolter-I optics for focusing grazing-incidence X-rays; used in XMM-Newton/eROSITA.

Topic Space Technology - Manufacturing
Exam Relevance ISRO Scientist Exam, SSC CPO