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Modern Physics with Specialized Online Physics Exams
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The ‘Planck’s Constant’ is associated with which aspect of quantum theory?
A. Quantization of energy
B. The speed of light
C. The mass-energy equivalence
D. The gravitational constant
Answer: Quantization of energy
The ‘Pauli Exclusion Principle’ states that:
A. No two electrons in an atom can have the same set of quantum numbers
B. The speed of light is constant in all frames of reference
C. Photons can exhibit both wave and particle properties
D. Energy is quantized in discrete levels
Answer: No two electrons in an atom can have the same set of quantum numbers
The ‘Bohr Model’ of the atom explains:
A. The quantization of atomic energy levels
B. The interaction of light with matter
C. The wave-particle duality of electrons
D. The behavior of electrons in magnetic fields
Answer: The quantization of atomic energy levels
The ‘Compton Effect’ demonstrated that:
A. X-rays are scattered by electrons and exhibit properties of particles
B. Atoms emit discrete energy levels
C. Electrons orbit the nucleus in fixed paths
D. The speed of light changes in different media
Answer: X-rays are scattered by electrons and exhibit properties of particles
The ‘Dark Energy’ is hypothesized to be responsible for:
A. The accelerated expansion of the universe
B. The stability of atomic nuclei
C. The formation of galaxies
D. The behavior of black holes
Answer: The accelerated expansion of the universe
The ‘Quantum Electrodynamics’ (QED) theory deals with:
A. The interaction of photons with charged particles
B. The strong force between quarks
C. The weak force in radioactive decay
D. The gravitational force between massive bodies
Answer: The interaction of photons with charged particles
The ‘Wheeler-DeWitt Equation’ is associated with:
A. Quantum gravity
B. Quantum chromodynamics
C. String theory
D. Relativistic quantum mechanics
Answer: Quantum gravity
The ‘Big Bang Theory’ explains:
A. The origin of the universe
B. The quantization of energy levels
C. The behavior of particles in a magnetic field
D. The interaction of photons with electrons
Answer: The origin of the universe
The ‘General Relativity’ theory predicts:
A. The bending of light around massive objects
B. The quantization of electromagnetic fields
C. The existence of virtual particles
D. The stability of atomic orbitals
Answer: The bending of light around massive objects