space hard MCQ

Adaptive optics in ground-based telescopes corrects atmospheric distortion using which component?

  1. Corrector plates
  2. Deformable mirrors
  3. Filter wheels
  4. Charge-coupled devices

Answer: Deformable mirrors

Deformable mirrors adjust shape hundreds of times per second based on wavefront sensor data, compensating for atmospheric turbulence in real-time.

Topic Astronomy - Instrumentation
Exam Relevance UPSC Prelims, General Science