Einstein, quanta in light and atoms
  • 1. Who is known for the theory of relativity?
A) Galileo Galilei
B) Nikola Tesla
C) Isaac Newton
D) Albert Einstein
  • 2. What is the speed of light in a vacuum?
A) 299,792,458 meters per second
B) 100,000,000 meters per second
C) 500,000,000 meters per second
D) 150,000 meters per second
  • 3. What does E=mc2 represent?
A) Equivalence of mass and energy
B) Velocity formula
C) Electromagnetic wave equation
D) Atomic structure
  • 4. Which experiment demonstrated the wave-particle duality of light?
A) Stern-Gerlach experiment
B) Michelson-Morley experiment
C) Double-slit experiment
D) Compton scattering
  • 5. Who formulated the uncertainty principle?
A) Werner Heisenberg
B) Niels Bohr
C) Erwin Schrödinger
D) Max Planck
  • 6. What is a photon?
A) A fundamental particle of light
B) A type of quark
C) An electron neutrino
D) A unit of magnetic field
  • 7. In the photoelectric effect, what happens when light hits a metal surface?
A) Electrons are ejected from the metal
B) The metal heats up
C) The metal changes color
D) The metal expands
  • 8. Which property of light can be explained using photon theory?
A) Interference
B) Polarization
C) Photoelectric effect
D) Diffraction
  • 9. What is the term for the smallest unit of light?
A) Boson
B) Neutrino
C) Photon
D) Quark
  • 10. What are the energy levels in an atom where electrons can exist called?
A) Orbitals
B) Neutrons
C) Shells
D) Protons
  • 11. Who was the first physicist to propose the existence of quantized energy levels in atoms?
A) Werner Heisenberg
B) Erwin Schrödinger
C) Niels Bohr
D) Louis de Broglie
  • 12. What happens in quantum superposition?
A) State of a system is a combination of multiple states simultaneously
B) Particles exhibit wave-particle duality
C) Particles are entangled at a distance
D) State decays to a single possibility
  • 13. What is the Pauli Exclusion Principle in atomic physics?
A) Electrons repel each other
B) Electrons have fixed trajectories
C) No two electrons in an atom can have the same set of quantum numbers
D) Electrons attract protons
  • 14. Which property of light is used in calculating the energy of a photon?
A) Amplitude
B) Speed
C) Wavelength
D) Frequency
  • 15. Who proposed the wave-particle duality principle?
A) Werner Heisenberg
B) Louis de Broglie
C) Max Planck
D) Erwin Schrödinger
  • 16. In which year did Albert Einstein receive the Nobel Prize in Physics for his explanation of the photoelectric effect?
A) 1915
B) 1931
C) 1905
D) 1921
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