Quiz  /  Quantum mechanics Class 12 MCQ Questions With Answers

  • 1. 
    Before 1925, quantum theory

  • faced little challenge to its credibility
  • lacked organization
  • had wide applications
  • was widely accepted

  • 2. 
    Schrodinger's cat experiment tested

  • the probability of quantum tunneling
  • Bohr's atomic model
  • whether a quantum system could exist in multiple states
  • radioactive decay in Plutonium

  • 3. 
    The use of a scanning tunneling microscope places a conducting tip

  • 0.5 to 0.8 nm from the surface
  • 0.4 to 0.7 nm from the surface
  • 0.4 to 0.9 nm from the surface
  • 0.3 to 0.5 nm from the surface

  • 4. 
    Which man wrote Mr. Tompkins in Wonderland?

  • George Orwell
  • Lewis Carroll
  • George Gamow
  • C.S. Lewis

  • 5. 
    In Mr. Tompkins in Wonderland, strange apparitions are a result of

  • alpha decay
  • large magnitudes of Planck's constant
  • the Pauli exclusion principle
  • radiation

  • 6. 
    All of the following statements about Schrodinger's cat are true EXCEPT

  • it was conducted in 1935
  • the cat is sealed inside of a box
  • the cat  is both alive and dead
  • there is a 50 percent chance a vial of poison is released inside the box

  • 7. 
    An object's path can be predicted using Newton's

  • uncertainty principle
  • particle theory
  • conservation laws
  • laws of motion

  • 8. 
    Which two characteristics are variables in Heisenberg's uncertainty principle?

  • wavelength and distance
  • position and momentum
  • charge and displacement
  • atomic radius and frequency

  • 9. 
    How does the scattering of a photon affect an electron

  • by splitting it in two
  • by charging its charge
  • by making it disappear
  • by changing its position

  • 10. 
    How does a scanning tunneling microscope map a surface?

  • by measuring the size of each individual electron
  • by measuring the voltage created by electron transfer
  • by measuring the size of each atom of the surface
  • by measuring the current due to tunneling electrons

  • 11. 
    Which book's protagonist explores a quantum jungle?

  • A New System of Chemical Philosophy
  • Optiks
  • Mr. Tompkins in Wonderland
  • The Jungle

  • 12. 
    Which physicist proposed the uncertainty principle in 1927?

  • Niels Bohr
  • Albert Einstein
  • Arnold Schrodinger
  • Werner Heisenberg

  • 13. 
    Schrodinger's equation described the

  • procedure for splitting an atom
  • complement of the wave function
  • behavior of "matter" waves
  • motion of light

  • 14. 
    Generally, the mathematics of modern quantum mechanics is

  • perfunctory
  • unimportant
  • simplified
  • complex

  • 15. 
    A determinist view of the world would expect

  • objects to move as they see fit
  • science to be formulaic
  • objects to follow predetermined paths
  • scientist to conduct experiments

  • 16. 
    According to classical mechanics, which law(s) apply or applies to the behavior of macroscopic particles?

  • Newton's three laws
  • the differential wave equation
  • Dalton's law of multiple proportions
  • Kepler's Law

  • 17. 
    The probability density is the

  • square root of the wave function
  • absolute value of the wave function
  • inverse of the wave function
  • absolute square of the wave function

  • 18. 
    Solutions to Schrodinger's equation are labeled with

  • psi
  • phi
  • mu
  • pi
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