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MCQBeginnerTelescopes, Instruments & Observing
IAAC — 2021 Final Round
Question 21
The negative effect of incoming wavefront distortions on telescope images is reduced by using a system called ...
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Source
Source: International Astronomy and Astrophysics Competition (IAAC), Final Round 2021. Question wording and answer-choice text are transcribed from the official training PDF; the explanation and metadata are original.