Quantum Mechanics Quiz

Which phenomenon did classical mechanics fail to explain, leading to the development of quantum mechanics?

• Gravity

• Electromagnetism

• Blackbodies

• Thermodynamics

Who discovered the quantization of energy?

• Albert Einstein

• Niels Bohr

• Max Planck

• Erwin Schrödinger

What is the principle called where a quantum system can exist in a combination of two or more discrete states?

• Entanglement

• Superposition

• Duality

• Uncertainty

In the Bohr model, electrons can only have discrete values of what?

• Mass

• Charge

• Energy levels

• Spin

Which experiment demonstrated the wave-like nature of light through diffraction patterns?

• Thomas Young's double-slit experiment

• Davisson–Germer experiment

• Stern–Gerlach experiment

• Heisenberg's microscope

In the photoelectric effect, what is emitted when light shines on a metal?

• Electrons

• Protons

• Neutrons

• Photons

What is the intrinsic angular momentum possessed by elementary particles in quantum mechanics called?

• Spin

• Charge

• Mass

• Velocity

In the Stern–Gerlach experiment, particles were deflected based on what property?

• Spin direction

• Mass

• Charge

• Velocity

Who used quantum tunneling to explain how an alpha particle escapes from a nucleus?

• Albert Einstein

• George Gamow

• Wolfgang Pauli

• Niels Bohr

What is a Bose-Einstein condensate?

• A state of matter formed at high temperatures

• A state of matter formed at low temperatures

• A type of particle collision

• A form of energy absorption