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Modern Physics with Specialized Online Physics Exams
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The probability density function in quantum mechanics describes:
A. The likelihood of finding a particle in a particular region of space
B. The energy of a particle
C. The velocity of a particle
D. The exact position of a particle
Answer: The likelihood of finding a particle in a particular region of space
Which fundamental particle is exchanged in the electromagnetic force?
A. Photon
B. Gluon
C. W and Z Bosons
D. Graviton
Answer: Photon
The concept of quantized energy levels in the atomic model was first introduced by:
A. Niels Bohr
B. Erwin Schrödinger
C. Max Planck
D. Werner Heisenberg
Answer: Niels Bohr
Which quantum number specifies the orientation of an electron’s orbital?
A. Magnetic Quantum Number
B. Principal Quantum Number
C. Azimuthal Quantum Number
D. Spin Quantum Number
Answer: Magnetic Quantum Number
In quantum mechanics, the Pauli exclusion principle states that:
A. No two electrons can have the same set of quantum numbers
B. Electrons can occupy the same quantum state
C. Electrons can only exist in discrete energy levels
D. The energy of an electron is continuous
Answer: No two electrons can have the same set of quantum numbers
The quantization of energy levels in a hydrogen atom is described by:
A. Bohr's Model
B. Einstein's Theory
C. Planck's Theory
D. Schrödinger's Equation
Answer: Bohr's Model
Which of the following is a fundamental force in Quantum Chromodynamics (QCD)?
A. Strong Force
B. Weak Force
C. Gravitational Force
D. Electromagnetic Force
Answer: Strong Force
The concept of wave-particle duality was notably illustrated by:
A. Young's Double-Slit Experiment
B. Stern-Gerlach Experiment
C. Photoelectric Effect Experiment
D. Millikan Oil Drop Experiment
Answer: Young's Double-Slit Experiment
Which experiment demonstrated the quantization of angular momentum in atoms?
A. Stern-Gerlach Experiment
B. Young's Double-Slit Experiment
C. Photoelectric Effect Experiment
D. Millikan Oil Drop Experiment
Answer: Stern-Gerlach Experiment