Quantum Mechanics and Path Integral Formulation Quiz

What does Feynman's path integral formulation suggest about the paths a particle can take?

• A particle takes no path.

• A particle takes a random path.

• A particle takes all possible paths.

• A particle takes only one path.

According to the Heisenberg uncertainty principle, what happens when you precisely measure a particle's position?

• Its velocity becomes precisely known.

• Its velocity becomes undefined.

• Its velocity remains constant.

• Its velocity becomes uncertain.

In the double-slit experiment, how is the interference pattern explained?

• Particles travel through a third slit.

• Particles travel through one slit only.

• Particles do not travel through any slit.

• Particles travel through both slits as waves.

What is the principle of least action in Feynman's formulation?

• Objects follow a random path.

• Objects follow the path of least action.

• Objects follow no path.

• Objects follow the path of maximum action.

How does Feynman's path integral formulation relate to classical physics?

• It borrows the principle of least action from classical physics.

• It contradicts classical physics.

• It ignores classical physics.

• It replaces classical physics entirely.

What is a key feature of Feynman's path integral approach in quantum field theory?

• It considers only one possible path.

• It considers infinite possible paths and events.

• It considers only two paths.

• It considers no paths.

What tool did Feynman introduce to manage infinite possible events in quantum field theory?

• Feynman diagrams

• Feynman waves

• Feynman paths

• Feynman equations

What is the main difference between quantum field theory and string theory?

• Quantum field theory describes particles as field vibrations.

• Quantum field theory describes particles as strings.

• String theory describes particles as waves.

• String theory describes particles as field vibrations.

What was the luminiferous aether proposed to be?

• A medium for sound waves.

• A medium for light waves.

• A medium for water waves.

• A medium for seismic waves.

What mystery does the imbalance of matter and antimatter in the universe indicate?

• A lack of antimatter in the universe.

• A perfect symmetry in the universe.

• A break in the symmetry of the universe.

• An abundance of antimatter in the universe.