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Modern Physics with Specialized Online Physics Exams
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The ‘many-worlds interpretation’ of quantum mechanics suggests that:
A. All possible outcomes of quantum measurements actually occur in separate, branching universes
B. Quantum particles are entangled in one universe only
C. Measurement collapses the wave function into a single state
D. Particles can only exist in one universe at a time
Answer: All possible outcomes of quantum measurements actually occur in separate, branching universes
Which experiment demonstrated the quantization of angular momentum?
A. Stern-Gerlach Experiment
B. Young's Double-Slit Experiment
C. Photoelectric Effect Experiment
D. Davisson-Germer Experiment
Answer: Stern-Gerlach Experiment
In quantum mechanics, what does the ‘collapse of the wave function’ refer to?
A. The transition of a quantum system from a superposition of states to a single state upon measurement
B. The spreading out of a particle's wave function over time
C. The entanglement of particles
D. The interaction of particles with their environment
Answer: The transition of a quantum system from a superposition of states to a single state upon measurement
The concept of ‘quantum superposition’ implies that:
A. A particle can exist in multiple states at the same time
B. Particles cannot be in more than one state
C. The state of a particle is always definite
D. None of the above
Answer: A particle can exist in multiple states at the same time
The concept of ‘quantum tunneling’ refers to:
A. A particle's ability to pass through a potential barrier that it classically could not surmount
B. The interaction between two particles at high speeds
C. The transition of a particle from one energy level to another
D. The measurement of a particle's position
Answer: A particle's ability to pass through a potential barrier that it classically could not surmount
Which of the following is a fundamental particle in the Standard Model of particle physics?
A. Quarks
B. Neutrinos
C. Photons
D. All of the above
Answer: All of the above
Which principle states that electrons fill atomic orbitals starting with the lowest energy level first?
A. Aufbau Principle
B. Pauli Exclusion Principle
C. Hund's Rule
D. Heisenberg Uncertainty Principle
Answer: Aufbau Principle
What is the energy of a photon related to?
A. The frequency of the photon
B. The mass of the photon
C. The charge of the photon
D. The velocity of the photon
Answer: The frequency of the photon
In quantum mechanics, what does the term ‘wave function’ refer to?
A. The mathematical description of the quantum state of a system
B. The actual physical wave emitted by a particle
C. The probability of a particle's position
D. The energy of a particle
Answer: The mathematical description of the quantum state of a system