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The ‘Heisenberg Uncertainty Principle’ implies that:
A. There is a fundamental limit to the precision with which certain pairs of physical properties can be known
B. Energy and time can be measured precisely simultaneously
C. Position and energy of a particle can be known exactly
D. Momentum and position can be measured simultaneously with no limit
Answer: There is a fundamental limit to the precision with which certain pairs of physical properties can be known
Subjects: Modern Physics, Physics
The ‘De Broglie wavelength’ of a particle is related to:
A. The momentum of the particle
B. The charge of the particle
C. The energy of the particle
D. The position of the particle
Answer: The momentum of the particle
Subjects: Modern Physics, Physics
The ‘Dirac Equation’ describes particles with:
A. Relativistic speeds
B. Non-relativistic speeds
C. Quantum entanglement
D. Wave-particle duality
Answer: Relativistic speeds
Subjects: Modern Physics, Physics
Which fundamental interaction is described by Quantum Chromodynamics (QCD)?
A. Strong Interaction
B. Electromagnetic Interaction
C. Weak Interaction
D. Gravitational Interaction
Answer: Strong Interaction
Subjects: Modern Physics, Physics
The ‘Bohr radius’ is the distance between the nucleus and the electron in the ground state of:
A. Hydrogen Atom
B. Helium Atom
C. Neon Atom
D. Carbon Atom
Answer: Hydrogen Atom
Subjects: Modern Physics, Physics
In quantum mechanics, the term ‘quantum state’ refers to:
A. A complete description of the properties of a quantum system
B. The location of a particle
C. The speed of a particle
D. The energy of a particle
Answer: A complete description of the properties of a quantum system
Subjects: Modern Physics, Physics
Which theory describes the interaction of particles in terms of exchanging virtual particles?
A. Quantum Field Theory
B. Classical Electrodynamics
C. General Relativity
D. Special Relativity
Answer: Quantum Field Theory
Subjects: Modern Physics, Physics
The ‘Pauli Exclusion Principle’ applies to which type of particles?
Which of the following equations is used to calculate the energy levels of an electron in a hydrogen atom?
A. Bohr's Model Equation
B. Schrödinger's Equation
C. Heisenberg's Equation
D. Dirac's Equation
Answer: Bohr's Model Equation
Subjects: Modern Physics, Physics