Virgo interferometer - Quiz
A) O2 B) O1 C) O3 D) O4
A) Supernova explosion B) Coalescence of two black holes C) Merger of two neutron stars D) Continuous wave from a pulsar
A) Measured the mass of a single pulsar B) Detected the first electromagnetic counterpart C) Increased the speed of gravity D) Allowed for greatly-improved localisation
A) Measured the polarisation of light only B) Confirmed multiple hidden dimensions C) Proved general relativity was incorrect D) Provided evidence against non-general relativity polarisations
A) A binary system of a black hole and neutron star B) A massive stellar collapse C) Merger of two neutron stars D) Coalescence of two black holes
A) Observed by only one detector B) Confirmed detection of an electromagnetic counterpart C) Lasted for over a year D) Highest energy signal ever detected
A) It helped more tightly constrain the event's localisation B) It meant the event was fake C) It indicated the source was moving away D) It proved the instrument was malfunctioning
A) Exactly 2,000 B) Over 4,000 C) Under 100 D) Over 10,000
A) Scorpius X-1 B) Crab Pulsar C) Vela Jr. D) The Sun
A) 1 km B) 1 mm C) 1 meter D) 1 cm
A) By an order of magnitude B) By a factor of two C) By five percent D) By zero percent
A) 75+2-2 km s−1 Mpc−1 B) 50+5-5 km s−1 Mpc−1 C) 100+20-10 km s−1 Mpc−1 D) 68+12-8 km s−1 Mpc−1
A) Operating a commercial radio station B) Direct selling of detectors C) Guided tours of facilities D) Lobbying for government funding
A) Museo della Grafica in Pisa B) The University of Paris C) Palais de Tokyo D) Virgo laboratory site
A) Banning artistic projects in museums B) Restricting data access to public schools C) Gender equality in science D) Increasing the price of telescope mirrors
A) Nearly 8 metres B) Approximately 5 metres C) Nearly 12 metres D) Exactly 10 metres
A) Aluminum B) Carbon fiber C) Silica D) Steel
A) Beam splitter B) Output mode cleaner C) Signal-recycling mirror D) Power-recycling mirror
A) Newton's second law B) Bernoulli's principle C) Doppler effect D) Heisenberg's uncertainty principle
A) 3 kilometres B) 1 kilometre C) 5 kilometres D) 10 kilometres
A) Photon calibration (PCal) B) Thermal calibration C) Newtonian calibration (NCal) D) Magnetic coil calibration
A) Hydrogen and water B) Helium and argon C) Oxygen and nitrogen D) Carbon dioxide and methane
A) 200 °C B) 150 °C C) 100 °C D) 250 °C
A) Frequency-dependent squeezing B) Superattenuators C) Hartmann wavefront sensors D) Active damping
A) To filter the laser beam B) To absorb stray light C) To hold the mirrors in place D) To cool the mirror surfaces
A) In the central building B) At the end of the north arm C) Alongside the west arm D) In the computing center
A) Photodiodes B) Cryogenic traps C) Gate valves D) Hartmann wavefront sensors
A) Compact binary coalescences B) Background noise from the early universe C) Stochastic backgrounds D) Rapidly-spinning pulsars
A) 1996 B) 2003 C) 1992 D) 1985
A) Germany B) Italy C) France D) United States
A) 1996 B) 2011 C) 2017 D) 2003
A) The velocity of light B) The Virgo galaxy cluster C) The vibration of space-time D) The volume of the detector
A) 2003 B) 2017 C) 1996 D) 2011
A) Pulsars B) Early moments of the universe C) Supernovas D) Stochastic background
A) Radio telescope B) Michelson interferometer C) Optical microscope D) Particle accelerator
A) 10 B) 50 C) 5 D) 20
A) GW2024 B) GW170817 C) GW150914 D) GW190814
A) 60 B) 165 C) 940 D) 20
A) 2019 B) 2023 C) 2015 D) 2007
A) INFN B) FWO C) Nikhef D) CNRS
A) 50 cm B) 35 cm C) 20 cm D) 15 cm
A) GW170817 B) GW150914 C) GW170814 D) GW190327
A) Gravitational wave amplification B) Vacuum chamber expansion C) Signal recycling D) Mirror cooling
A) 60 kg B) 88 kg C) 25 kg D) 40 kg
A) 10 April 2024 B) 18 November 2025 C) 28 January 2025 D) January 2027
A) 130 nanometres. B) 1064 nanometres. C) 100 nanometres. D) 50 nanometres.
A) 150 W. B) 100 W. C) 50 W. D) 130 W.
A) Input mode cleaner. B) Mirror-coating. C) Faraday isolator. D) Mode-matching telescope.
A) Michelson-nEXT. B) Advanced Virgo Upgrade. C) Virgo_O5. D) Virgo_nEXT.
A) Fibre laser. B) Nd:YAG laser. C) Helium-neon laser. D) Nd:YVO4 laser.
A) Removing the Faraday isolator. B) Mirror-coating improvement. C) Replacing the photodiode. D) Increasing the arm length.
A) Gas laser. B) Fibre laser. C) Nd:YAG laser. D) Nd:YVO4 laser.
A) Spheres B) Rectangles C) Cylinders D) Cones
A) High-density plastic B) Silicon carbide C) Extremely pure glass D) Polished steel
A) Ion-beam sputtering B) Chemical vapor deposition C) Thermal evaporation D) Electroplating
A) Less than 0.002 per cent B) 0.02 per cent C) 0.2 per cent D) 2 per cent
A) Thermal expansion B) Quantum noise C) Laser jitter D) Mechanical vibration
A) Calibration lines B) Glitches C) Shot noise D) Violin modes
A) Noise increases proportionally B) Sensitivity remains unchanged C) Sensitivity improves D) Sensitivity decreases
A) 6 months B) 18 months C) 12 months D) 24 months
A) Gamma-ray bursts B) Exoplanet transits C) Continuous sources D) Solar flares
A) Public broadcast radio B) Social media automation C) Direct email newsletters D) A dedicated infrastructure
A) Data acquisition latency B) Stochastic background C) Atmospheric interference D) Instrument calibration drift
A) LVK members B) The general public C) Only Virgo scientists D) Governmental space agencies |
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