Qed by Richard P. Feynman

1. What does QED stand for?

A) Quantum Electrostatics
B) Quantum Electrodynamics
C) Quantum Elastic Dynamics
D) Quantum Energy Dynamics

2. Who is the author of 'QED'?

A) Max Planck
B) Richard P. Feynman
C) Albert Einstein
D) Niels Bohr

3. What fundamental force does QED describe?

A) Weak force
B) Nuclear force
C) Electromagnetic force
D) Gravitational force

4. Which particle is primarily associated with QED?

A) Quark
B) Electron
C) Neutrino
D) Photon

5. In QED, how are interactions between charged particles represented?

A) Wave functions
B) Feynman diagrams
C) Lagrange multipliers
D) Symmetry transformations

6. What is the main implication of QED?

A) Gravity can be ignored in quantum contexts
B) Matter is continuous
C) Electromagnetic interactions are quantized
D) Particles do not interact

7. What does the exchange of virtual photons represent in QED?

A) Force between charged particles
B) Energy levels of electrons
C) Speed of light
D) Mass of particles

8. What does the Fine-Structure Constant represent?

A) Charge of the proton
B) Speed of light in a vacuum
C) Mass of the electron
D) Strength of electromagnetic interaction

9. What are the implications of 'spontaneous emission' discussed in QED?

A) Atoms can lose energy by emitting photons
B) Particles cannot emit energy spontaneously
C) Photons are always absorbed
D) Atoms gain energy from the environment

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