What is the name of the experiment using a half-silvered mirror to create superposition of paths?
Answer
Mach–Zehnder interferometer
34719 Intermediate Trivia Questions
34719 public questions at this depth. How many can you answer?
What does the acronym QED stand for?
Answer
Quantum electrodynamics
What experiment proved the existence of electron spin?
Answer
Stern-Gerlach experiment
Who proposed the wave equation for non-relativistic quantum mechanics?
Answer
Erwin Schrödinger
Who led the 1982 experiment that confirmed violation of Bell's inequalities?
Answer
Alain Aspect
What theorem states that an unknown quantum state cannot be perfectly copied?
Answer
no-cloning theorem
What statistics do integer-spin particles obey?
Answer
Bose–Einstein statistics
What effect slows a quantum system's evolution through frequent measurement?
Answer
quantum Zeno effect
What quantum experiment uses 'which-path' information to erase interference patterns?
Answer
quantum eraser
What set of 2x2 matrices represents spin-1/2 observables?
Answer
Pauli matrices
What relativistic equation describes spin-1/2 particles like electrons?
Answer
Dirac equation
What is the name of the quantum effect where magnetic vector potentials influence charged particles?
Answer
Aharonov-Bohm effect
What quantum effect is responsible for the integer quantization of Hall resistance?
Answer
Integer quantum Hall effect
Who proposed that all particles have an associated matter wave?
Answer
Louis de Broglie
Who discovered the increase in X-ray wavelength when scattered by electrons?
Answer
Arthur Holly Compton
Who first performed the double-slit experiment with electrons?
Answer
Claus Jönsson
Which quantum number determines the shape of an atomic orbital?
Answer
Azimuthal quantum number
Which experiment demonstrated the quantization of electron spin?
Answer
Stern–Gerlach experiment
What is the basic unit of quantum information?
Answer
Qubit
What phenomenon allows two particles to be correlated across space?
Answer
Quantum entanglement
What is the name of the equation that describes how a quantum wave function evolves?
Answer
Schrödinger equation
What constant is denoted by the letter h in quantum mechanics?
Answer
Planck constant
Between what altitudes in kilometers do Venus's main cloud deck lie?
Answer
50 to 70 km
Which Japanese space probe entered orbit around Venus in 2015?
Answer
Akatsuki
Which ESA spacecraft studied Venus from 2006 to 2014?
Answer
Venus Express
What was the first spacecraft to orbit Venus?
Answer
Venera 9
What was the first successful US space probe to fly by Venus?
Answer
Mariner 2
How many Earth days does it take for Venus to rotate once on its axis?
Answer
243 Earth days
What gas makes up about 96% of Venus's atmosphere?
Answer
carbon dioxide
What is the name of the ultraviolet spectrometer on Voyager?
Answer
Ultraviolet Spectrometer (UVS)
Who chaired the committee that selected the Golden Record contents?
Answer
Carl Sagan
What did Voyager 2 discover on Neptune's moon Triton?
Answer
Nitrogen geysers
What is the gravitational assist maneuver used by Voyager at Jupiter called?
Answer
Gravity assist
What is the name of the instrument on Voyager that measures plasma waves?
Answer
Plasma Wave Subsystem