Max Planck, Quantum Theory
- 1. Max Planck was a pivotal figure in the development of quantum theory, a groundbreaking framework that transformed our understanding of the microscopic world. Born in 1858 in Germany, Planck initially pursued a career in physics and gradually became interested in the behavior of energy at the atomic and subatomic levels. In 1900, he introduced the concept of quantization, proposing that energy is not emitted or absorbed continuously, but rather in discrete units called 'quanta.' This revolutionary idea emerged from his work on black-body radiation, where he sought to explain the observed spectrum of light emitted by heated objects. Planck derived his famous equation, revealing that the energy of these quanta is proportional to the frequency of the radiation emitted, fundamentally altering the classical physics paradigm. His work laid the groundwork for the development of quantum mechanics, influencing subsequent physicists such as Albert Einstein and Niels Bohr. Planck's contributions earned him the Nobel Prize in Physics in 1918, and he is often regarded as the father of quantum theory, a field that would eventually lead to the development of technologies such as semiconductors, lasers, and quantum computers, showcasing the profound implications of his early 20th-century discoveries.
Who is known as the father of quantum theory?
A) Niels Bohr
B) Max Planck
C) Werner Heisenberg
D) Albert Einstein
- 2. In what year did Max Planck propose the revolutionary idea of quantization of energy?
A) 1910
B) 1885
C) 1925
D) 1900
- 3. Which phenomenon does quantum theory address that classical physics cannot explain?
A) Blackbody radiation
B) Newton's laws of motion
C) Maxwell's equations
D) Kepler's laws of planetary motion
- 4. Which branch of physics deals with the behavior of matter and energy at atomic and subatomic scales?
A) Quantum mechanics
B) Thermodynamics
C) Electrodynamics
D) Classical mechanics
- 5. What is the term for the phenomenon where two particles become entangled and their properties are correlated regardless of the distance between them?
A) Entanglement
B) Superposition
C) Quantization
D) Duality
- 6. Who developed the famous uncertainty principle that states the position and momentum of a particle cannot both be precisely determined?
A) Erwin Schrödinger
B) Paul Dirac
C) Werner Heisenberg
D) Richard Feynman
- 7. The theory of quantum mechanics served as the foundation for the development of which computing technology?
A) Digital computing
B) Cloud computing
C) Quantum computing
D) Analog computing
- 8. What is the term for the principle that describes the ability of a system to exist in multiple states at the same time?
A) Entanglement
B) Superposition
C) Duality
D) Quantization
- 9. What is the term for the process of connecting quantum systems across large distances through entanglement?
A) Entanglement transfer
B) Quantum entanglement
C) Quantum synchronization
D) Quantum teleportation
- 10. What is the term for the mathematical construct in quantum mechanics that describes the probability of finding a particle in a particular state?
A) Hamiltonian operator
B) Probability density
C) Wave function
D) Quantum field
- 11. What is the name of the experiment that demonstrates the wave-particle duality of light?
A) Compton scattering
B) Blackbody radiation
C) Double-slit experiment
D) Photoelectric effect
- 12. What is the formula for calculating the energy of a photon?
A) E = kQ1Q2/r
B) E = mc2
C) E = hf
D) E = 1/2 mv2
- 13. What term refers to the bending of light around obstacles?
A) Reflection
B) Dispersion
C) Refraction
D) Diffraction
- 14. What type of experiment confirmed the wave-like nature of electrons?
A) Millikan oil drop experiment
B) Rutherford gold foil experiment
C) Hertz experiment
D) Davisson-Germer experiment
- 15. Who developed the famous thought experiment involving a cat in a closed box?
A) Louis de Broglie
B) Erwin Schrödinger
C) Werner Heisenberg
D) Niels Bohr
- 16. Who formulated the famous equation E=mc2?
A) Niels Bohr
B) Albert Einstein
C) Erwin Schrödinger
D) Max Planck
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