← Back to Training
MCQIntermediateTelescopes, Instruments & Observing
IAAC — 2020 Final Round
Question 10
The first gravitational wave GW150914 was detected by using a Michelson interferometer with an arm length of ...
Sign in to save your progress.
Source
Source: International Astronomy and Astrophysics Competition (IAAC), Final Round 2020. Question wording and answer-choice text are transcribed from the official training PDF; the explanation and metadata are original.