Class 9 Homework-

With reference to 'LIGO (Laser Inferometer Gravitational-wave Observatory)', which of the following statements is/ are correct?

1. LIGO is the world's largest gravitational wave observatory

2. The Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo detectors recorded an unknown or unanticipated 'burst' of gravitational waves on January 14, 2020.

Which among the above statements is/ are correct?

1) 1 only

2) 2 only

3) Both 1 and 2

4) Neither 1 nor 2




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