Quiz  /  Quantum mechanics Gate & PSU MCQ Questions With Answers

  • 1. 
    The wave-particle duality of light describes light as...

  • a wave only
  • a particle only
  • both a wave and a particle
  • neither a wave nor a particle

  • 2. 
    The common between classical and quantum mechanical fundamental distribution function is :

  • they all depend upon the quantity that define state only
  • they all depend only upon the energy of the state
  • they all depend both on energy and quantity defining state
  • nothing is common in them

  • 3. 
    The notation for representing wave function is

  • Ψ
  • µ
  • þ
  • £

  • 4. 
    Wave function in Quantum Mechanics is as similar as ....... in Classical Mechanics.

  • Amplitude
  • velocity
  • momentum
  • position

  • 5. 
    Calculate the de Broglie wavelength of a particle travelling at a velocity of 107 cm/s?

  • 7.7 Å
  • 72.7 Å
  • 0. 727 Å
  • 0.0727 Å

  • 6. 
    The basic principle behind Quantum Mechanics

  • Heisenberg's uncertainity principle
  • Newton's laws
  • Wein's displacement law
  • Planck's radiation law

  • 7. 
    If you hit a table with your hand, what force stops your hand from going through?

  • Gravity
  • Electromagnetism
  • Air resistance
  • All of above

  • 8. 
    Wave function is represented by the symbol

  • Ψ
  • £
  • þ
  • µ

  • 9. 
    What does an electron act like?

  • A field
  • A wave
  • A ball
  • None of these

  • 10. 
    What is a radioactive atom?

  • An unstable atom
  • A stable atom
  • An atom that glows a bright green color
  • Both A & B

  • 11. 
    Which particle is antimatter?

  • Proton
  • Higgs boson
  • Positron
  • All of above

  • 12. 
    What keeps protons and neutrons together in the nucleus of an atom?

  • Electromagnetism
  • Love
  • Gluons
  • All of above

  • 13. 
    What is the smallest particle the nucleus consists of?

  • Electron
  • Proton
  • Quark
  • All of above

  • 14. 
    This image is an illustration of

  • photoelectric effect
  • Dalton's atomic theory
  • Bohr model
  • Quantum mechanical model

  • 15. 
    What happens if you shoot a neutrino at the earth?

  • It explodes
  • It makes new particles
  • It goes through
  • All of above

  • 16. 
    How fast does a photon travel?

  • At the speed of light
  • Faster than the speed of light
  • 200 km per second
  • None of these
Report Question
warning
access_time
  Time